Home / 90,749,234.80-136,123,852.20-74,806,004.80

Finding the Fourth Proportional to 90,749,234.80, 136,123,852.20 and 74,806,004.80

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Solution

The fourth proportional to 90,749,234.80, 136,123,852.20 and 74,806,004.80 is: 112,209,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,749,234.80 : 136,123,852.20 = 74,806,004.80 : x
  2. Step 2: Convert to fraction form
    90,749,234.80/136,123,852.20 = 74,806,004.80/x
  3. Step 3: Cross multiply
    90,749,234.80x = 136,123,852.20 × 74,806,004.80
  4. Step 4: Simplify right side
    90,749,234.80x = 10,182,881,541,067,690
  5. Step 5: Solve for x
    x = 10,182,881,541,067,690/90,749,234.80
  6. Step 6: Final answer
    x = 112,209,007.20

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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.