Home / 506,438,140.10-698,869,622.96-280,387,198.44

Finding the Fourth Proportional to 506,438,140.10, 698,869,622.96 and 280,387,198.44

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Solution

The fourth proportional to 506,438,140.10, 698,869,622.96 and 280,387,198.44 is: 386,926,023.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,438,140.10 : 698,869,622.96 = 280,387,198.44 : x
  2. Step 2: Convert to fraction form
    506,438,140.10/698,869,622.96 = 280,387,198.44/x
  3. Step 3: Cross multiply
    506,438,140.10x = 698,869,622.96 × 280,387,198.44
  4. Step 4: Simplify right side
    506,438,140.10x = 195,954,095,656,573,504
  5. Step 5: Solve for x
    x = 195,954,095,656,573,504/506,438,140.10
  6. Step 6: Final answer
    x = 386,926,023.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.