Home / 191,885,407.20-287,591,914.80-130,474,447.20

Finding the Fourth Proportional to 191,885,407.20, 287,591,914.80 and 130,474,447.20

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Solution

The fourth proportional to 191,885,407.20, 287,591,914.80 and 130,474,447.20 is: 195,551,066.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,885,407.20 : 287,591,914.80 = 130,474,447.20 : x
  2. Step 2: Convert to fraction form
    191,885,407.20/287,591,914.80 = 130,474,447.20/x
  3. Step 3: Cross multiply
    191,885,407.20x = 287,591,914.80 × 130,474,447.20
  4. Step 4: Simplify right side
    191,885,407.20x = 37,523,396,102,719,504
  5. Step 5: Solve for x
    x = 37,523,396,102,719,504/191,885,407.20
  6. Step 6: Final answer
    x = 195,551,066.91

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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.