Home / 20,853,159.40-31,232,499.90-12,350,103.40

Finding the Fourth Proportional to 20,853,159.40, 31,232,499.90 and 12,350,103.40

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Solution

The fourth proportional to 20,853,159.40, 31,232,499.90 and 12,350,103.40 is: 18,497,178.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,159.40 : 31,232,499.90 = 12,350,103.40 : x
  2. Step 2: Convert to fraction form
    20,853,159.40/31,232,499.90 = 12,350,103.40/x
  3. Step 3: Cross multiply
    20,853,159.40x = 31,232,499.90 × 12,350,103.40
  4. Step 4: Simplify right side
    20,853,159.40x = 385,724,603,205,489.62
  5. Step 5: Solve for x
    x = 385,724,603,205,489.62/20,853,159.40
  6. Step 6: Final answer
    x = 18,497,178.09

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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.