Home / 12,547,825.60-18,840,400.80-9,711,140.80

Finding the Fourth Proportional to 12,547,825.60, 18,840,400.80 and 9,711,140.80

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Solution

The fourth proportional to 12,547,825.60, 18,840,400.80 and 9,711,140.80 is: 14,581,154.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547,825.60 : 18,840,400.80 = 9,711,140.80 : x
  2. Step 2: Convert to fraction form
    12,547,825.60/18,840,400.80 = 9,711,140.80/x
  3. Step 3: Cross multiply
    12,547,825.60x = 18,840,400.80 × 9,711,140.80
  4. Step 4: Simplify right side
    12,547,825.60x = 182,961,784,897,232.66
  5. Step 5: Solve for x
    x = 182,961,784,897,232.66/12,547,825.60
  6. Step 6: Final answer
    x = 14,581,154.59

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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.