Home / 1,209,253,412.79-1,814,167,972.26-391,365,713.79

Finding the Fourth Proportional to 1,209,253,412.79, 1,814,167,972.26 and 391,365,713.79

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Solution

The fourth proportional to 1,209,253,412.79, 1,814,167,972.26 and 391,365,713.79 is: 587,141,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,253,412.79 : 1,814,167,972.26 = 391,365,713.79 : x
  2. Step 2: Convert to fraction form
    1,209,253,412.79/1,814,167,972.26 = 391,365,713.79/x
  3. Step 3: Cross multiply
    1,209,253,412.79x = 1,814,167,972.26 × 391,365,713.79
  4. Step 4: Simplify right side
    1,209,253,412.79x = 710,003,143,398,491,904
  5. Step 5: Solve for x
    x = 710,003,143,398,491,904/1,209,253,412.79
  6. Step 6: Final answer
    x = 587,141,732.15

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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.