Home / 89,712,968.80-134,632,438.80-38,631,647.20

Finding the Fourth Proportional to 89,712,968.80, 134,632,438.80 and 38,631,647.20

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Solution

The fourth proportional to 89,712,968.80, 134,632,438.80 and 38,631,647.20 is: 57,974,593.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,712,968.80 : 134,632,438.80 = 38,631,647.20 : x
  2. Step 2: Convert to fraction form
    89,712,968.80/134,632,438.80 = 38,631,647.20/x
  3. Step 3: Cross multiply
    89,712,968.80x = 134,632,438.80 × 38,631,647.20
  4. Step 4: Simplify right side
    89,712,968.80x = 5,201,072,877,397,192
  5. Step 5: Solve for x
    x = 5,201,072,877,397,192/89,712,968.80
  6. Step 6: Final answer
    x = 57,974,593.27

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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.