Home / 169,655,330.20-254,557,644.90-78,732,117.40

Finding the Fourth Proportional to 169,655,330.20, 254,557,644.90 and 78,732,117.40

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Solution

The fourth proportional to 169,655,330.20, 254,557,644.90 and 78,732,117.40 is: 118,132,818.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,655,330.20 : 254,557,644.90 = 78,732,117.40 : x
  2. Step 2: Convert to fraction form
    169,655,330.20/254,557,644.90 = 78,732,117.40/x
  3. Step 3: Cross multiply
    169,655,330.20x = 254,557,644.90 × 78,732,117.40
  4. Step 4: Simplify right side
    169,655,330.20x = 20,041,862,383,334,312
  5. Step 5: Solve for x
    x = 20,041,862,383,334,312/169,655,330.20
  6. Step 6: Final answer
    x = 118,132,818.81

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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.