Home / 7,172,466.32-9,897,940.56-3,909,281.20

Finding the Fourth Proportional to 7,172,466.32, 9,897,940.56 and 3,909,281.20

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Solution

The fourth proportional to 7,172,466.32, 9,897,940.56 and 3,909,281.20 is: 5,394,773.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,466.32 : 9,897,940.56 = 3,909,281.20 : x
  2. Step 2: Convert to fraction form
    7,172,466.32/9,897,940.56 = 3,909,281.20/x
  3. Step 3: Cross multiply
    7,172,466.32x = 9,897,940.56 × 3,909,281.20
  4. Step 4: Simplify right side
    7,172,466.32x = 38,693,832,949,925.48
  5. Step 5: Solve for x
    x = 38,693,832,949,925.48/7,172,466.32
  6. Step 6: Final answer
    x = 5,394,773.74

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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.