Home / 10,376,840.40-15,523,270.20-9,117,128.40

Finding the Fourth Proportional to 10,376,840.40, 15,523,270.20 and 9,117,128.40

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Solution

The fourth proportional to 10,376,840.40, 15,523,270.20 and 9,117,128.40 is: 13,638,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,376,840.40 : 15,523,270.20 = 9,117,128.40 : x
  2. Step 2: Convert to fraction form
    10,376,840.40/15,523,270.20 = 9,117,128.40/x
  3. Step 3: Cross multiply
    10,376,840.40x = 15,523,270.20 × 9,117,128.40
  4. Step 4: Simplify right side
    10,376,840.40x = 141,527,647,601,293.69
  5. Step 5: Solve for x
    x = 141,527,647,601,293.69/10,376,840.40
  6. Step 6: Final answer
    x = 13,638,799.69

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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.