Home / 429,171,150.06-643,852,712.52-156,541,917.06

Finding the Fourth Proportional to 429,171,150.06, 643,852,712.52 and 156,541,917.06

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Solution

The fourth proportional to 429,171,150.06, 643,852,712.52 and 156,541,917.06 is: 234,847,887.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,171,150.06 : 643,852,712.52 = 156,541,917.06 : x
  2. Step 2: Convert to fraction form
    429,171,150.06/643,852,712.52 = 156,541,917.06/x
  3. Step 3: Cross multiply
    429,171,150.06x = 643,852,712.52 × 156,541,917.06
  4. Step 4: Simplify right side
    429,171,150.06x = 100,789,937,922,161,856
  5. Step 5: Solve for x
    x = 100,789,937,922,161,856/429,171,150.06
  6. Step 6: Final answer
    x = 234,847,887.39

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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.