Home / 120,583,551.60-180,875,327.40-74,667,049.20

Finding the Fourth Proportional to 120,583,551.60, 180,875,327.40 and 74,667,049.20

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Solution

The fourth proportional to 120,583,551.60, 180,875,327.40 and 74,667,049.20 is: 112,000,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,583,551.60 : 180,875,327.40 = 74,667,049.20 : x
  2. Step 2: Convert to fraction form
    120,583,551.60/180,875,327.40 = 74,667,049.20/x
  3. Step 3: Cross multiply
    120,583,551.60x = 180,875,327.40 × 74,667,049.20
  4. Step 4: Simplify right side
    120,583,551.60x = 13,505,426,970,041,910
  5. Step 5: Solve for x
    x = 13,505,426,970,041,910/120,583,551.60
  6. Step 6: Final answer
    x = 112,000,573.80

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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.