Home / 14,998,856.40-20,698,318.80-8,123,181.12

Finding the Fourth Proportional to 14,998,856.40, 20,698,318.80 and 8,123,181.12

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Solution

The fourth proportional to 14,998,856.40, 20,698,318.80 and 8,123,181.12 is: 11,209,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,998,856.40 : 20,698,318.80 = 8,123,181.12 : x
  2. Step 2: Convert to fraction form
    14,998,856.40/20,698,318.80 = 8,123,181.12/x
  3. Step 3: Cross multiply
    14,998,856.40x = 20,698,318.80 × 8,123,181.12
  4. Step 4: Simplify right side
    14,998,856.40x = 168,136,192,491,901.06
  5. Step 5: Solve for x
    x = 168,136,192,491,901.06/14,998,856.40
  6. Step 6: Final answer
    x = 11,209,934.14

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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.