Home / 90,288,596-124,605,946.68-51,137,337.54

Finding the Fourth Proportional to 90,288,596, 124,605,946.68 and 51,137,337.54

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Solution

The fourth proportional to 90,288,596, 124,605,946.68 and 51,137,337.54 is: 70,573,877.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,288,596 : 124,605,946.68 = 51,137,337.54 : x
  2. Step 2: Convert to fraction form
    90,288,596/124,605,946.68 = 51,137,337.54/x
  3. Step 3: Cross multiply
    90,288,596x = 124,605,946.68 × 51,137,337.54
  4. Step 4: Simplify right side
    90,288,596x = 6,372,016,354,866,403
  5. Step 5: Solve for x
    x = 6,372,016,354,866,403/90,288,596
  6. Step 6: Final answer
    x = 70,573,877.96

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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.