Home / 14,135,966.46-19,507,117.05-8,638,542.90

Finding the Fourth Proportional to 14,135,966.46, 19,507,117.05 and 8,638,542.90

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Solution

The fourth proportional to 14,135,966.46, 19,507,117.05 and 8,638,542.90 is: 11,920,873.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135,966.46 : 19,507,117.05 = 8,638,542.90 : x
  2. Step 2: Convert to fraction form
    14,135,966.46/19,507,117.05 = 8,638,542.90/x
  3. Step 3: Cross multiply
    14,135,966.46x = 19,507,117.05 × 8,638,542.90
  4. Step 4: Simplify right side
    14,135,966.46x = 168,513,067,491,746.47
  5. Step 5: Solve for x
    x = 168,513,067,491,746.47/14,135,966.46
  6. Step 6: Final answer
    x = 11,920,873.47

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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.