Home / 18,390,966.47-25,380,321.05-10,242,204.47

Finding the Fourth Proportional to 18,390,966.47, 25,380,321.05 and 10,242,204.47

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Solution

The fourth proportional to 18,390,966.47, 25,380,321.05 and 10,242,204.47 is: 14,134,680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390,966.47 : 25,380,321.05 = 10,242,204.47 : x
  2. Step 2: Convert to fraction form
    18,390,966.47/25,380,321.05 = 10,242,204.47/x
  3. Step 3: Cross multiply
    18,390,966.47x = 25,380,321.05 × 10,242,204.47
  4. Step 4: Simplify right side
    18,390,966.47x = 259,950,437,644,623.03
  5. Step 5: Solve for x
    x = 259,950,437,644,623.03/18,390,966.47
  6. Step 6: Final answer
    x = 14,134,680.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.