Home / 1,087,486,543.20-1,631,229,814.80-674,238,021.60

Finding the Fourth Proportional to 1,087,486,543.20, 1,631,229,814.80 and 674,238,021.60

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Solution

The fourth proportional to 1,087,486,543.20, 1,631,229,814.80 and 674,238,021.60 is: 1,011,357,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,486,543.20 : 1,631,229,814.80 = 674,238,021.60 : x
  2. Step 2: Convert to fraction form
    1,087,486,543.20/1,631,229,814.80 = 674,238,021.60/x
  3. Step 3: Cross multiply
    1,087,486,543.20x = 1,631,229,814.80 × 674,238,021.60
  4. Step 4: Simplify right side
    1,087,486,543.20x = 1,099,837,163,105,686,400
  5. Step 5: Solve for x
    x = 1,099,837,163,105,686,400/1,087,486,543.20
  6. Step 6: Final answer
    x = 1,011,357,032.40

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Double scale
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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.