Home / 120,782,622.40-180,994,773.12-88,713,154.24

Finding the Fourth Proportional to 120,782,622.40, 180,994,773.12 and 88,713,154.24

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Solution

The fourth proportional to 120,782,622.40, 180,994,773.12 and 88,713,154.24 is: 132,938,140.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,782,622.40 : 180,994,773.12 = 88,713,154.24 : x
  2. Step 2: Convert to fraction form
    120,782,622.40/180,994,773.12 = 88,713,154.24/x
  3. Step 3: Cross multiply
    120,782,622.40x = 180,994,773.12 × 88,713,154.24
  4. Step 4: Simplify right side
    120,782,622.40x = 16,056,617,224,428,366
  5. Step 5: Solve for x
    x = 16,056,617,224,428,366/120,782,622.40
  6. Step 6: Final answer
    x = 132,938,140.48

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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.