Home / 169,655,330.70-254,557,645.65-78,732,117.90

Finding the Fourth Proportional to 169,655,330.70, 254,557,645.65 and 78,732,117.90

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Solution

The fourth proportional to 169,655,330.70, 254,557,645.65 and 78,732,117.90 is: 118,132,819.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,655,330.70 : 254,557,645.65 = 78,732,117.90 : x
  2. Step 2: Convert to fraction form
    169,655,330.70/254,557,645.65 = 78,732,117.90/x
  3. Step 3: Cross multiply
    169,655,330.70x = 254,557,645.65 × 78,732,117.90
  4. Step 4: Simplify right side
    169,655,330.70x = 20,041,862,569,662,224
  5. Step 5: Solve for x
    x = 20,041,862,569,662,224/169,655,330.70
  6. Step 6: Final answer
    x = 118,132,819.56

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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.