Home / 149,471,901.20-224,207,851.80-128,665,986.05

Finding the Fourth Proportional to 149,471,901.20, 224,207,851.80 and 128,665,986.05

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Solution

The fourth proportional to 149,471,901.20, 224,207,851.80 and 128,665,986.05 is: 192,998,979.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,471,901.20 : 224,207,851.80 = 128,665,986.05 : x
  2. Step 2: Convert to fraction form
    149,471,901.20/224,207,851.80 = 128,665,986.05/x
  3. Step 3: Cross multiply
    149,471,901.20x = 224,207,851.80 × 128,665,986.05
  4. Step 4: Simplify right side
    149,471,901.20x = 28,847,924,331,999,268
  5. Step 5: Solve for x
    x = 28,847,924,331,999,268/149,471,901.20
  6. Step 6: Final answer
    x = 192,998,979.08

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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.