Home / 127,680,006.40-191,520,009.60-87,369,222.40

Finding the Fourth Proportional to 127,680,006.40, 191,520,009.60 and 87,369,222.40

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Solution

The fourth proportional to 127,680,006.40, 191,520,009.60 and 87,369,222.40 is: 131,053,833.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,680,006.40 : 191,520,009.60 = 87,369,222.40 : x
  2. Step 2: Convert to fraction form
    127,680,006.40/191,520,009.60 = 87,369,222.40/x
  3. Step 3: Cross multiply
    127,680,006.40x = 191,520,009.60 × 87,369,222.40
  4. Step 4: Simplify right side
    127,680,006.40x = 16,732,954,312,792,536
  5. Step 5: Solve for x
    x = 16,732,954,312,792,536/127,680,006.40
  6. Step 6: Final answer
    x = 131,053,833.60

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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.