Home / 81,833,545.57-122,766,488.79-30,018,629.38

Finding the Fourth Proportional to 81,833,545.57, 122,766,488.79 and 30,018,629.38

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Solution

The fourth proportional to 81,833,545.57, 122,766,488.79 and 30,018,629.38 is: 45,033,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,833,545.57 : 122,766,488.79 = 30,018,629.38 : x
  2. Step 2: Convert to fraction form
    81,833,545.57/122,766,488.79 = 30,018,629.38/x
  3. Step 3: Cross multiply
    81,833,545.57x = 122,766,488.79 × 30,018,629.38
  4. Step 4: Simplify right side
    81,833,545.57x = 3,685,281,727,270,934.50
  5. Step 5: Solve for x
    x = 3,685,281,727,270,934.50/81,833,545.57
  6. Step 6: Final answer
    x = 45,033,875.80

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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.