Home / 1,298,189,389.22-1,947,299,042.90-469,205,989.46

Finding the Fourth Proportional to 1,298,189,389.22, 1,947,299,042.90 and 469,205,989.46

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Solution

The fourth proportional to 1,298,189,389.22, 1,947,299,042.90 and 469,205,989.46 is: 703,814,390.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,189,389.22 : 1,947,299,042.90 = 469,205,989.46 : x
  2. Step 2: Convert to fraction form
    1,298,189,389.22/1,947,299,042.90 = 469,205,989.46/x
  3. Step 3: Cross multiply
    1,298,189,389.22x = 1,947,299,042.90 × 469,205,989.46
  4. Step 4: Simplify right side
    1,298,189,389.22x = 913,684,374,188,059,008
  5. Step 5: Solve for x
    x = 913,684,374,188,059,008/1,298,189,389.22
  6. Step 6: Final answer
    x = 703,814,390.86

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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.