Home / 91,314,338.99-137,018,600.09-42,797,121.80

Finding the Fourth Proportional to 91,314,338.99, 137,018,600.09 and 42,797,121.80

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Solution

The fourth proportional to 91,314,338.99, 137,018,600.09 and 42,797,121.80 is: 64,217,753.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,314,338.99 : 137,018,600.09 = 42,797,121.80 : x
  2. Step 2: Convert to fraction form
    91,314,338.99/137,018,600.09 = 42,797,121.80/x
  3. Step 3: Cross multiply
    91,314,338.99x = 137,018,600.09 × 42,797,121.80
  4. Step 4: Simplify right side
    91,314,338.99x = 5,864,001,716,917,221
  5. Step 5: Solve for x
    x = 5,864,001,716,917,221/91,314,338.99
  6. Step 6: Final answer
    x = 64,217,753.55

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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.