Home / 144,612,694.72-199,564,901.38-78,532,730.28

Finding the Fourth Proportional to 144,612,694.72, 199,564,901.38 and 78,532,730.28

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Solution

The fourth proportional to 144,612,694.72, 199,564,901.38 and 78,532,730.28 is: 108,374,832.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,612,694.72 : 199,564,901.38 = 78,532,730.28 : x
  2. Step 2: Convert to fraction form
    144,612,694.72/199,564,901.38 = 78,532,730.28/x
  3. Step 3: Cross multiply
    144,612,694.72x = 199,564,901.38 × 78,532,730.28
  4. Step 4: Simplify right side
    144,612,694.72x = 15,672,376,573,430,340
  5. Step 5: Solve for x
    x = 15,672,376,573,430,340/144,612,694.72
  6. Step 6: Final answer
    x = 108,374,832.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.