Home / 28,515,175.20-42,772,762.80-13,398,631.20

Finding the Fourth Proportional to 28,515,175.20, 42,772,762.80 and 13,398,631.20

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Solution

The fourth proportional to 28,515,175.20, 42,772,762.80 and 13,398,631.20 is: 20,097,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515,175.20 : 42,772,762.80 = 13,398,631.20 : x
  2. Step 2: Convert to fraction form
    28,515,175.20/42,772,762.80 = 13,398,631.20/x
  3. Step 3: Cross multiply
    28,515,175.20x = 42,772,762.80 × 13,398,631.20
  4. Step 4: Simplify right side
    28,515,175.20x = 573,096,474,162,279.25
  5. Step 5: Solve for x
    x = 573,096,474,162,279.25/28,515,175.20
  6. Step 6: Final answer
    x = 20,097,946.80

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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.