Home / 1,209,717,189.70-1,814,575,784.55-348,074,181.70

Finding the Fourth Proportional to 1,209,717,189.70, 1,814,575,784.55 and 348,074,181.70

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Solution

The fourth proportional to 1,209,717,189.70, 1,814,575,784.55 and 348,074,181.70 is: 522,111,272.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,717,189.70 : 1,814,575,784.55 = 348,074,181.70 : x
  2. Step 2: Convert to fraction form
    1,209,717,189.70/1,814,575,784.55 = 348,074,181.70/x
  3. Step 3: Cross multiply
    1,209,717,189.70x = 1,814,575,784.55 × 348,074,181.70
  4. Step 4: Simplify right side
    1,209,717,189.70x = 631,606,981,339,876,736
  5. Step 5: Solve for x
    x = 631,606,981,339,876,736/1,209,717,189.70
  6. Step 6: Final answer
    x = 522,111,272.55

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Half scale
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Double scale
Find fourth proportional to 1,209,717,190.70, 1,814,575,786.05 and 348,074,182.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.