Home / 66,434,718.80-99,652,078.20-39,112,965.20

Finding the Fourth Proportional to 66,434,718.80, 99,652,078.20 and 39,112,965.20

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Solution

The fourth proportional to 66,434,718.80, 99,652,078.20 and 39,112,965.20 is: 58,669,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,434,718.80 : 99,652,078.20 = 39,112,965.20 : x
  2. Step 2: Convert to fraction form
    66,434,718.80/99,652,078.20 = 39,112,965.20/x
  3. Step 3: Cross multiply
    66,434,718.80x = 99,652,078.20 × 39,112,965.20
  4. Step 4: Simplify right side
    66,434,718.80x = 3,897,688,266,744,279
  5. Step 5: Solve for x
    x = 3,897,688,266,744,279/66,434,718.80
  6. Step 6: Final answer
    x = 58,669,447.80

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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.