Home / 15,711,543.60-21,678,680.71-9,183,910.38

Finding the Fourth Proportional to 15,711,543.60, 21,678,680.71 and 9,183,910.38

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Solution

The fourth proportional to 15,711,543.60, 21,678,680.71 and 9,183,910.38 is: 12,671,896.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,711,543.60 : 21,678,680.71 = 9,183,910.38 : x
  2. Step 2: Convert to fraction form
    15,711,543.60/21,678,680.71 = 9,183,910.38/x
  3. Step 3: Cross multiply
    15,711,543.60x = 21,678,680.71 × 9,183,910.38
  4. Step 4: Simplify right side
    15,711,543.60x = 199,095,060,884,539.12
  5. Step 5: Solve for x
    x = 199,095,060,884,539.12/15,711,543.60
  6. Step 6: Final answer
    x = 12,671,896.92

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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.