Home / 20,905,591.15-31,362,740.70-10,536,637.78

Finding the Fourth Proportional to 20,905,591.15, 31,362,740.70 and 10,536,637.78

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Solution

The fourth proportional to 20,905,591.15, 31,362,740.70 and 10,536,637.78 is: 15,807,151.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,905,591.15 : 31,362,740.70 = 10,536,637.78 : x
  2. Step 2: Convert to fraction form
    20,905,591.15/31,362,740.70 = 10,536,637.78/x
  3. Step 3: Cross multiply
    20,905,591.15x = 31,362,740.70 × 10,536,637.78
  4. Step 4: Simplify right side
    20,905,591.15x = 330,457,838,543,963.62
  5. Step 5: Solve for x
    x = 330,457,838,543,963.62/20,905,591.15
  6. Step 6: Final answer
    x = 15,807,151.12

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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.