Home / 18,390,060.60-27,585,090.90-15,520,279.20

Finding the Fourth Proportional to 18,390,060.60, 27,585,090.90 and 15,520,279.20

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Solution

The fourth proportional to 18,390,060.60, 27,585,090.90 and 15,520,279.20 is: 23,280,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390,060.60 : 27,585,090.90 = 15,520,279.20 : x
  2. Step 2: Convert to fraction form
    18,390,060.60/27,585,090.90 = 15,520,279.20/x
  3. Step 3: Cross multiply
    18,390,060.60x = 27,585,090.90 × 15,520,279.20
  4. Step 4: Simplify right side
    18,390,060.60x = 428,128,312,525,379.25
  5. Step 5: Solve for x
    x = 428,128,312,525,379.25/18,390,060.60
  6. Step 6: Final answer
    x = 23,280,418.80

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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.