Home / 12,790,492.38-17,650,925.31-6,989,274.06

Finding the Fourth Proportional to 12,790,492.38, 17,650,925.31 and 6,989,274.06

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Solution

The fourth proportional to 12,790,492.38, 17,650,925.31 and 6,989,274.06 is: 9,645,223.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790,492.38 : 17,650,925.31 = 6,989,274.06 : x
  2. Step 2: Convert to fraction form
    12,790,492.38/17,650,925.31 = 6,989,274.06/x
  3. Step 3: Cross multiply
    12,790,492.38x = 17,650,925.31 × 6,989,274.06
  4. Step 4: Simplify right side
    12,790,492.38x = 123,367,154,404,180.44
  5. Step 5: Solve for x
    x = 123,367,154,404,180.44/12,790,492.38
  6. Step 6: Final answer
    x = 9,645,223.24

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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.