Home / 76,806,545.88-115,209,935.46-31,368,340.38

Finding the Fourth Proportional to 76,806,545.88, 115,209,935.46 and 31,368,340.38

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Solution

The fourth proportional to 76,806,545.88, 115,209,935.46 and 31,368,340.38 is: 47,052,558.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,806,545.88 : 115,209,935.46 = 31,368,340.38 : x
  2. Step 2: Convert to fraction form
    76,806,545.88/115,209,935.46 = 31,368,340.38/x
  3. Step 3: Cross multiply
    76,806,545.88x = 115,209,935.46 × 31,368,340.38
  4. Step 4: Simplify right side
    76,806,545.88x = 3,613,944,470,667,111.50
  5. Step 5: Solve for x
    x = 3,613,944,470,667,111.50/76,806,545.88
  6. Step 6: Final answer
    x = 47,052,558.21

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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.