Home / 103,629,639.20-155,543,991.60-52,569,312.80

Finding the Fourth Proportional to 103,629,639.20, 155,543,991.60 and 52,569,312.80

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Solution

The fourth proportional to 103,629,639.20, 155,543,991.60 and 52,569,312.80 is: 78,904,460.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629,639.20 : 155,543,991.60 = 52,569,312.80 : x
  2. Step 2: Convert to fraction form
    103,629,639.20/155,543,991.60 = 52,569,312.80/x
  3. Step 3: Cross multiply
    103,629,639.20x = 155,543,991.60 × 52,569,312.80
  4. Step 4: Simplify right side
    103,629,639.20x = 8,176,840,748,580,972
  5. Step 5: Solve for x
    x = 8,176,840,748,580,972/103,629,639.20
  6. Step 6: Final answer
    x = 78,904,460.27

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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.