Home / 12,678,310.16-17,495,963.40-6,877,077.20

Finding the Fourth Proportional to 12,678,310.16, 17,495,963.40 and 6,877,077.20

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Solution

The fourth proportional to 12,678,310.16, 17,495,963.40 and 6,877,077.20 is: 9,490,309.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,678,310.16 : 17,495,963.40 = 6,877,077.20 : x
  2. Step 2: Convert to fraction form
    12,678,310.16/17,495,963.40 = 6,877,077.20/x
  3. Step 3: Cross multiply
    12,678,310.16x = 17,495,963.40 × 6,877,077.20
  4. Step 4: Simplify right side
    12,678,310.16x = 120,321,090,990,174.47
  5. Step 5: Solve for x
    x = 120,321,090,990,174.47/12,678,310.16
  6. Step 6: Final answer
    x = 9,490,309.79

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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.