Home / 120,144,641-180,234,945.96-43,485,605.12

Finding the Fourth Proportional to 120,144,641, 180,234,945.96 and 43,485,605.12

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Solution

The fourth proportional to 120,144,641, 180,234,945.96 and 43,485,605.12 is: 65,234,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,144,641 : 180,234,945.96 = 43,485,605.12 : x
  2. Step 2: Convert to fraction form
    120,144,641/180,234,945.96 = 43,485,605.12/x
  3. Step 3: Cross multiply
    120,144,641x = 180,234,945.96 × 43,485,605.12
  4. Step 4: Simplify right side
    120,144,641x = 7,837,625,688,841,099
  5. Step 5: Solve for x
    x = 7,837,625,688,841,099/120,144,641
  6. Step 6: Final answer
    x = 65,234,917.04

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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.