Home / 120,261,443.55-180,400,353.75-38,386,485.18

Finding the Fourth Proportional to 120,261,443.55, 180,400,353.75 and 38,386,485.18

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Solution

The fourth proportional to 120,261,443.55, 180,400,353.75 and 38,386,485.18 is: 57,582,341.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,261,443.55 : 180,400,353.75 = 38,386,485.18 : x
  2. Step 2: Convert to fraction form
    120,261,443.55/180,400,353.75 = 38,386,485.18/x
  3. Step 3: Cross multiply
    120,261,443.55x = 180,400,353.75 × 38,386,485.18
  4. Step 4: Simplify right side
    120,261,443.55x = 6,924,935,505,691,132
  5. Step 5: Solve for x
    x = 6,924,935,505,691,132/120,261,443.55
  6. Step 6: Final answer
    x = 57,582,341.45

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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.