Home / 76,806,545.36-115,209,934.70-31,368,339.86

Finding the Fourth Proportional to 76,806,545.36, 115,209,934.70 and 31,368,339.86

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Solution

The fourth proportional to 76,806,545.36, 115,209,934.70 and 31,368,339.86 is: 47,052,557.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,806,545.36 : 115,209,934.70 = 31,368,339.86 : x
  2. Step 2: Convert to fraction form
    76,806,545.36/115,209,934.70 = 31,368,339.86/x
  3. Step 3: Cross multiply
    76,806,545.36x = 115,209,934.70 × 31,368,339.86
  4. Step 4: Simplify right side
    76,806,545.36x = 3,613,944,386,185,115.50
  5. Step 5: Solve for x
    x = 3,613,944,386,185,115.50/76,806,545.36
  6. Step 6: Final answer
    x = 47,052,557.43

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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.