Home / 20,642,472.34-28,487,343-11,350,750.12

Finding the Fourth Proportional to 20,642,472.34, 28,487,343 and 11,350,750.12

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Solution

The fourth proportional to 20,642,472.34, 28,487,343 and 11,350,750.12 is: 15,664,437.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,642,472.34 : 28,487,343 = 11,350,750.12 : x
  2. Step 2: Convert to fraction form
    20,642,472.34/28,487,343 = 11,350,750.12/x
  3. Step 3: Cross multiply
    20,642,472.34x = 28,487,343 × 11,350,750.12
  4. Step 4: Simplify right side
    20,642,472.34x = 323,352,711,975,731.12
  5. Step 5: Solve for x
    x = 323,352,711,975,731.12/20,642,472.34
  6. Step 6: Final answer
    x = 15,664,437.22

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1.5x scale

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.