Home / 18,390,982.40-25,380,343.02-10,242,220.40

Finding the Fourth Proportional to 18,390,982.40, 25,380,343.02 and 10,242,220.40

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Solution

The fourth proportional to 18,390,982.40, 25,380,343.02 and 10,242,220.40 is: 14,134,702.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390,982.40 : 25,380,343.02 = 10,242,220.40 : x
  2. Step 2: Convert to fraction form
    18,390,982.40/25,380,343.02 = 10,242,220.40/x
  3. Step 3: Cross multiply
    18,390,982.40x = 25,380,343.02 × 10,242,220.40
  4. Step 4: Simplify right side
    18,390,982.40x = 259,951,067,038,441.62
  5. Step 5: Solve for x
    x = 259,951,067,038,441.62/18,390,982.40
  6. Step 6: Final answer
    x = 14,134,702.62

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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.