Home / 429,126,708.33-643,786,015.29-156,497,475.33

Finding the Fourth Proportional to 429,126,708.33, 643,786,015.29 and 156,497,475.33

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Solution

The fourth proportional to 429,126,708.33, 643,786,015.29 and 156,497,475.33 is: 234,781,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,126,708.33 : 643,786,015.29 = 156,497,475.33 : x
  2. Step 2: Convert to fraction form
    429,126,708.33/643,786,015.29 = 156,497,475.33/x
  3. Step 3: Cross multiply
    429,126,708.33x = 643,786,015.29 × 156,497,475.33
  4. Step 4: Simplify right side
    429,126,708.33x = 100,750,886,045,645,776
  5. Step 5: Solve for x
    x = 100,750,886,045,645,776/429,126,708.33
  6. Step 6: Final answer
    x = 234,781,205.85

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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.