Home / 6,658,689.76-9,989,520.72-2,615,569.12

Finding the Fourth Proportional to 6,658,689.76, 9,989,520.72 and 2,615,569.12

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Solution

The fourth proportional to 6,658,689.76, 9,989,520.72 and 2,615,569.12 is: 3,923,937.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658,689.76 : 9,989,520.72 = 2,615,569.12 : x
  2. Step 2: Convert to fraction form
    6,658,689.76/9,989,520.72 = 2,615,569.12/x
  3. Step 3: Cross multiply
    6,658,689.76x = 9,989,520.72 × 2,615,569.12
  4. Step 4: Simplify right side
    6,658,689.76x = 26,128,281,918,832.17
  5. Step 5: Solve for x
    x = 26,128,281,918,832.17/6,658,689.76
  6. Step 6: Final answer
    x = 3,923,937.42

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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.