Home / 1,209,253,359.60-1,814,167,892.28-391,365,660.60

Finding the Fourth Proportional to 1,209,253,359.60, 1,814,167,892.28 and 391,365,660.60

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Solution

The fourth proportional to 1,209,253,359.60, 1,814,167,892.28 and 391,365,660.60 is: 587,141,652.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,253,359.60 : 1,814,167,892.28 = 391,365,660.60 : x
  2. Step 2: Convert to fraction form
    1,209,253,359.60/1,814,167,892.28 = 391,365,660.60/x
  3. Step 3: Cross multiply
    1,209,253,359.60x = 1,814,167,892.28 × 391,365,660.60
  4. Step 4: Simplify right side
    1,209,253,359.60x = 710,003,015,601,471,872
  5. Step 5: Solve for x
    x = 710,003,015,601,471,872/1,209,253,359.60
  6. Step 6: Final answer
    x = 587,141,652.30

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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.