Home / 85,164,013.70-127,746,020.55-49,220,231.30

Finding the Fourth Proportional to 85,164,013.70, 127,746,020.55 and 49,220,231.30

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Solution

The fourth proportional to 85,164,013.70, 127,746,020.55 and 49,220,231.30 is: 73,830,346.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,164,013.70 : 127,746,020.55 = 49,220,231.30 : x
  2. Step 2: Convert to fraction form
    85,164,013.70/127,746,020.55 = 49,220,231.30/x
  3. Step 3: Cross multiply
    85,164,013.70x = 127,746,020.55 × 49,220,231.30
  4. Step 4: Simplify right side
    85,164,013.70x = 6,287,688,679,125,553
  5. Step 5: Solve for x
    x = 6,287,688,679,125,553/85,164,013.70
  6. Step 6: Final answer
    x = 73,830,346.95

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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.