Home / 67,157,008.40-100,724,243.60-18,639,791.12

Finding the Fourth Proportional to 67,157,008.40, 100,724,243.60 and 18,639,791.12

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Solution

The fourth proportional to 67,157,008.40, 100,724,243.60 and 18,639,791.12 is: 27,956,558.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,157,008.40 : 100,724,243.60 = 18,639,791.12 : x
  2. Step 2: Convert to fraction form
    67,157,008.40/100,724,243.60 = 18,639,791.12/x
  3. Step 3: Cross multiply
    67,157,008.40x = 100,724,243.60 × 18,639,791.12
  4. Step 4: Simplify right side
    67,157,008.40x = 1,877,478,861,423,996.75
  5. Step 5: Solve for x
    x = 1,877,478,861,423,996.75/67,157,008.40
  6. Step 6: Final answer
    x = 27,956,558.91

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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.