Home / 15,415,581.72-21,272,690.00-8,799,907.64

Finding the Fourth Proportional to 15,415,581.72, 21,272,690.00 and 8,799,907.64

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Solution

The fourth proportional to 15,415,581.72, 21,272,690.00 and 8,799,907.64 is: 12,143,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415,581.72 : 21,272,690.00 = 8,799,907.64 : x
  2. Step 2: Convert to fraction form
    15,415,581.72/21,272,690.00 = 8,799,907.64/x
  3. Step 3: Cross multiply
    15,415,581.72x = 21,272,690.00 × 8,799,907.64
  4. Step 4: Simplify right side
    15,415,581.72x = 187,197,707,169,987.94
  5. Step 5: Solve for x
    x = 187,197,707,169,987.94/15,415,581.72
  6. Step 6: Final answer
    x = 12,143,408.57

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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.