Home / 12,966,326.90-17,893,537.28-7,165,108.48

Finding the Fourth Proportional to 12,966,326.90, 17,893,537.28 and 7,165,108.48

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Solution

The fourth proportional to 12,966,326.90, 17,893,537.28 and 7,165,108.48 is: 9,887,853.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966,326.90 : 17,893,537.28 = 7,165,108.48 : x
  2. Step 2: Convert to fraction form
    12,966,326.90/17,893,537.28 = 7,165,108.48/x
  3. Step 3: Cross multiply
    12,966,326.90x = 17,893,537.28 × 7,165,108.48
  4. Step 4: Simplify right side
    12,966,326.90x = 128,209,135,702,124.16
  5. Step 5: Solve for x
    x = 128,209,135,702,124.16/12,966,326.90
  6. Step 6: Final answer
    x = 9,887,853.11

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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.