Home / 681,711,205.10-1,022,566,807.65-423,218,302.70

Finding the Fourth Proportional to 681,711,205.10, 1,022,566,807.65 and 423,218,302.70

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Solution

The fourth proportional to 681,711,205.10, 1,022,566,807.65 and 423,218,302.70 is: 634,827,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,711,205.10 : 1,022,566,807.65 = 423,218,302.70 : x
  2. Step 2: Convert to fraction form
    681,711,205.10/1,022,566,807.65 = 423,218,302.70/x
  3. Step 3: Cross multiply
    681,711,205.10x = 1,022,566,807.65 × 423,218,302.70
  4. Step 4: Simplify right side
    681,711,205.10x = 432,768,988,730,990,336
  5. Step 5: Solve for x
    x = 432,768,988,730,990,336/681,711,205.10
  6. Step 6: Final answer
    x = 634,827,454.05

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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.