Home / 90,724,207.60-135,999,220.20-30,108,732.40

Finding the Fourth Proportional to 90,724,207.60, 135,999,220.20 and 30,108,732.40

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Solution

The fourth proportional to 90,724,207.60, 135,999,220.20 and 30,108,732.40 is: 45,134,195.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,724,207.60 : 135,999,220.20 = 30,108,732.40 : x
  2. Step 2: Convert to fraction form
    90,724,207.60/135,999,220.20 = 30,108,732.40/x
  3. Step 3: Cross multiply
    90,724,207.60x = 135,999,220.20 × 30,108,732.40
  4. Step 4: Simplify right side
    90,724,207.60x = 4,094,764,127,610,474
  5. Step 5: Solve for x
    x = 4,094,764,127,610,474/90,724,207.60
  6. Step 6: Final answer
    x = 45,134,195.56

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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.