Home / 261,347,657.66-392,018,829.15-67,258,318.58

Finding the Fourth Proportional to 261,347,657.66, 392,018,829.15 and 67,258,318.58

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Solution

The fourth proportional to 261,347,657.66, 392,018,829.15 and 67,258,318.58 is: 100,886,793.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,347,657.66 : 392,018,829.15 = 67,258,318.58 : x
  2. Step 2: Convert to fraction form
    261,347,657.66/392,018,829.15 = 67,258,318.58/x
  3. Step 3: Cross multiply
    261,347,657.66x = 392,018,829.15 × 67,258,318.58
  4. Step 4: Simplify right side
    261,347,657.66x = 26,366,527,298,369,196
  5. Step 5: Solve for x
    x = 26,366,527,298,369,196/261,347,657.66
  6. Step 6: Final answer
    x = 100,886,793.99

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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.