Home / 12,687,056.47-17,508,305.88-6,885,907.75

Finding the Fourth Proportional to 12,687,056.47, 17,508,305.88 and 6,885,907.75

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Solution

The fourth proportional to 12,687,056.47, 17,508,305.88 and 6,885,907.75 is: 9,502,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,056.47 : 17,508,305.88 = 6,885,907.75 : x
  2. Step 2: Convert to fraction form
    12,687,056.47/17,508,305.88 = 6,885,907.75/x
  3. Step 3: Cross multiply
    12,687,056.47x = 17,508,305.88 × 6,885,907.75
  4. Step 4: Simplify right side
    12,687,056.47x = 120,560,579,130,513.95
  5. Step 5: Solve for x
    x = 120,560,579,130,513.95/12,687,056.47
  6. Step 6: Final answer
    x = 9,502,643.85

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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.