Home / 1,389,704,081.70-2,084,556,122.55-469,567,134.30

Finding the Fourth Proportional to 1,389,704,081.70, 2,084,556,122.55 and 469,567,134.30

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Solution

The fourth proportional to 1,389,704,081.70, 2,084,556,122.55 and 469,567,134.30 is: 704,350,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,704,081.70 : 2,084,556,122.55 = 469,567,134.30 : x
  2. Step 2: Convert to fraction form
    1,389,704,081.70/2,084,556,122.55 = 469,567,134.30/x
  3. Step 3: Cross multiply
    1,389,704,081.70x = 2,084,556,122.55 × 469,567,134.30
  4. Step 4: Simplify right side
    1,389,704,081.70x = 978,839,044,753,323,136
  5. Step 5: Solve for x
    x = 978,839,044,753,323,136/1,389,704,081.70
  6. Step 6: Final answer
    x = 704,350,701.45

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Half scale
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Double scale
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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.