Home / 89,712,970.80-134,632,441.80-38,631,649.20

Finding the Fourth Proportional to 89,712,970.80, 134,632,441.80 and 38,631,649.20

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Solution

The fourth proportional to 89,712,970.80, 134,632,441.80 and 38,631,649.20 is: 57,974,596.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,712,970.80 : 134,632,441.80 = 38,631,649.20 : x
  2. Step 2: Convert to fraction form
    89,712,970.80/134,632,441.80 = 38,631,649.20/x
  3. Step 3: Cross multiply
    89,712,970.80x = 134,632,441.80 × 38,631,649.20
  4. Step 4: Simplify right side
    89,712,970.80x = 5,201,073,262,557,017
  5. Step 5: Solve for x
    x = 5,201,073,262,557,017/89,712,970.80
  6. Step 6: Final answer
    x = 57,974,596.27

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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.