Home / 12,475,904.80-18,711,232.80-5,287,673.20

Finding the Fourth Proportional to 12,475,904.80, 18,711,232.80 and 5,287,673.20

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Solution

The fourth proportional to 12,475,904.80, 18,711,232.80 and 5,287,673.20 is: 7,930,397.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475,904.80 : 18,711,232.80 = 5,287,673.20 : x
  2. Step 2: Convert to fraction form
    12,475,904.80/18,711,232.80 = 5,287,673.20/x
  3. Step 3: Cross multiply
    12,475,904.80x = 18,711,232.80 × 5,287,673.20
  4. Step 4: Simplify right side
    12,475,904.80x = 98,938,884,215,520.97
  5. Step 5: Solve for x
    x = 98,938,884,215,520.97/12,475,904.80
  6. Step 6: Final answer
    x = 7,930,397.50

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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.