Home / 28,534,802.43-42,809,926.15-20,347,787.76

Finding the Fourth Proportional to 28,534,802.43, 42,809,926.15 and 20,347,787.76

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Solution

The fourth proportional to 28,534,802.43, 42,809,926.15 and 20,347,787.76 is: 30,527,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,534,802.43 : 42,809,926.15 = 20,347,787.76 : x
  2. Step 2: Convert to fraction form
    28,534,802.43/42,809,926.15 = 20,347,787.76/x
  3. Step 3: Cross multiply
    28,534,802.43x = 42,809,926.15 × 20,347,787.76
  4. Step 4: Simplify right side
    28,534,802.43x = 871,087,291,005,685.38
  5. Step 5: Solve for x
    x = 871,087,291,005,685.38/28,534,802.43
  6. Step 6: Final answer
    x = 30,527,188.44

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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.