Home / 1,209,253,405.29-1,814,167,961.01-391,365,706.29

Finding the Fourth Proportional to 1,209,253,405.29, 1,814,167,961.01 and 391,365,706.29

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Solution

The fourth proportional to 1,209,253,405.29, 1,814,167,961.01 and 391,365,706.29 is: 587,141,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,253,405.29 : 1,814,167,961.01 = 391,365,706.29 : x
  2. Step 2: Convert to fraction form
    1,209,253,405.29/1,814,167,961.01 = 391,365,706.29/x
  3. Step 3: Cross multiply
    1,209,253,405.29x = 1,814,167,961.01 × 391,365,706.29
  4. Step 4: Simplify right side
    1,209,253,405.29x = 710,003,125,389,367,808
  5. Step 5: Solve for x
    x = 710,003,125,389,367,808/1,209,253,405.29
  6. Step 6: Final answer
    x = 587,141,720.90

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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.