Home / 81,563,974.05-112,567,868.81-45,806,291.38

Finding the Fourth Proportional to 81,563,974.05, 112,567,868.81 and 45,806,291.38

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Solution

The fourth proportional to 81,563,974.05, 112,567,868.81 and 45,806,291.38 is: 63,218,064.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,563,974.05 : 112,567,868.81 = 45,806,291.38 : x
  2. Step 2: Convert to fraction form
    81,563,974.05/112,567,868.81 = 45,806,291.38/x
  3. Step 3: Cross multiply
    81,563,974.05x = 112,567,868.81 × 45,806,291.38
  4. Step 4: Simplify right side
    81,563,974.05x = 5,156,316,598,736,474
  5. Step 5: Solve for x
    x = 5,156,316,598,736,474/81,563,974.05
  6. Step 6: Final answer
    x = 63,218,064.82

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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.