Home / 28,115,130.80-42,172,696.20-26,520,807.80

Finding the Fourth Proportional to 28,115,130.80, 42,172,696.20 and 26,520,807.80

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Solution

The fourth proportional to 28,115,130.80, 42,172,696.20 and 26,520,807.80 is: 39,781,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115,130.80 : 42,172,696.20 = 26,520,807.80 : x
  2. Step 2: Convert to fraction form
    28,115,130.80/42,172,696.20 = 26,520,807.80/x
  3. Step 3: Cross multiply
    28,115,130.80x = 42,172,696.20 × 26,520,807.80
  4. Step 4: Simplify right side
    28,115,130.80x = 1,118,453,970,327,990.50
  5. Step 5: Solve for x
    x = 1,118,453,970,327,990.50/28,115,130.80
  6. Step 6: Final answer
    x = 39,781,211.70

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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.