Home / 681,711,209.10-1,022,566,813.65-423,218,306.70

Finding the Fourth Proportional to 681,711,209.10, 1,022,566,813.65 and 423,218,306.70

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Solution

The fourth proportional to 681,711,209.10, 1,022,566,813.65 and 423,218,306.70 is: 634,827,460.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,711,209.10 : 1,022,566,813.65 = 423,218,306.70 : x
  2. Step 2: Convert to fraction form
    681,711,209.10/1,022,566,813.65 = 423,218,306.70/x
  3. Step 3: Cross multiply
    681,711,209.10x = 1,022,566,813.65 × 423,218,306.70
  4. Step 4: Simplify right side
    681,711,209.10x = 432,768,995,360,567,424
  5. Step 5: Solve for x
    x = 432,768,995,360,567,424/681,711,209.10
  6. Step 6: Final answer
    x = 634,827,460.05

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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.