Home / 127,171,883.70-175,487,194.71-72,167,740.20

Finding the Fourth Proportional to 127,171,883.70, 175,487,194.71 and 72,167,740.20

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Solution

The fourth proportional to 127,171,883.70, 175,487,194.71 and 72,167,740.20 is: 99,585,803.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,171,883.70 : 175,487,194.71 = 72,167,740.20 : x
  2. Step 2: Convert to fraction form
    127,171,883.70/175,487,194.71 = 72,167,740.20/x
  3. Step 3: Cross multiply
    127,171,883.70x = 175,487,194.71 × 72,167,740.20
  4. Step 4: Simplify right side
    127,171,883.70x = 12,664,514,276,258,096
  5. Step 5: Solve for x
    x = 12,664,514,276,258,096/127,171,883.70
  6. Step 6: Final answer
    x = 99,585,803.94

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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.