Home / 103,680,611.70-155,520,917.55-83,525,219.70

Finding the Fourth Proportional to 103,680,611.70, 155,520,917.55 and 83,525,219.70

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Solution

The fourth proportional to 103,680,611.70, 155,520,917.55 and 83,525,219.70 is: 125,287,829.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680,611.70 : 155,520,917.55 = 83,525,219.70 : x
  2. Step 2: Convert to fraction form
    103,680,611.70/155,520,917.55 = 83,525,219.70/x
  3. Step 3: Cross multiply
    103,680,611.70x = 155,520,917.55 × 83,525,219.70
  4. Step 4: Simplify right side
    103,680,611.70x = 12,989,918,806,309,338
  5. Step 5: Solve for x
    x = 12,989,918,806,309,338/103,680,611.70
  6. Step 6: Final answer
    x = 125,287,829.55

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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.