Home / 12,580,090.20-18,870,135.30-12,367,513.80

Finding the Fourth Proportional to 12,580,090.20, 18,870,135.30 and 12,367,513.80

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Solution

The fourth proportional to 12,580,090.20, 18,870,135.30 and 12,367,513.80 is: 18,551,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580,090.20 : 18,870,135.30 = 12,367,513.80 : x
  2. Step 2: Convert to fraction form
    12,580,090.20/18,870,135.30 = 12,367,513.80/x
  3. Step 3: Cross multiply
    12,580,090.20x = 18,870,135.30 × 12,367,513.80
  4. Step 4: Simplify right side
    12,580,090.20x = 233,376,658,730,617.16
  5. Step 5: Solve for x
    x = 233,376,658,730,617.16/12,580,090.20
  6. Step 6: Final answer
    x = 18,551,270.70

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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.