Home / 90,991,902.76-136,487,854.54-30,407,628.76

Finding the Fourth Proportional to 90,991,902.76, 136,487,854.54 and 30,407,628.76

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Solution

The fourth proportional to 90,991,902.76, 136,487,854.54 and 30,407,628.76 is: 45,611,443.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,991,902.76 : 136,487,854.54 = 30,407,628.76 : x
  2. Step 2: Convert to fraction form
    90,991,902.76/136,487,854.54 = 30,407,628.76/x
  3. Step 3: Cross multiply
    90,991,902.76x = 136,487,854.54 × 30,407,628.76
  4. Step 4: Simplify right side
    90,991,902.76x = 4,150,272,011,101,200.50
  5. Step 5: Solve for x
    x = 4,150,272,011,101,200.50/90,991,902.76
  6. Step 6: Final answer
    x = 45,611,443.27

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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.