Home / 89,712,965.80-134,632,434.30-38,631,644.20

Finding the Fourth Proportional to 89,712,965.80, 134,632,434.30 and 38,631,644.20

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Solution

The fourth proportional to 89,712,965.80, 134,632,434.30 and 38,631,644.20 is: 57,974,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,712,965.80 : 134,632,434.30 = 38,631,644.20 : x
  2. Step 2: Convert to fraction form
    89,712,965.80/134,632,434.30 = 38,631,644.20/x
  3. Step 3: Cross multiply
    89,712,965.80x = 134,632,434.30 × 38,631,644.20
  4. Step 4: Simplify right side
    89,712,965.80x = 5,201,072,299,657,477
  5. Step 5: Solve for x
    x = 5,201,072,299,657,477/89,712,965.80
  6. Step 6: Final answer
    x = 57,974,588.77

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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.