Home / 13,185,279.88-19,780,987.02-4,086,894.76

Finding the Fourth Proportional to 13,185,279.88, 19,780,987.02 and 4,086,894.76

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Solution

The fourth proportional to 13,185,279.88, 19,780,987.02 and 4,086,894.76 is: 6,131,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185,279.88 : 19,780,987.02 = 4,086,894.76 : x
  2. Step 2: Convert to fraction form
    13,185,279.88/19,780,987.02 = 4,086,894.76/x
  3. Step 3: Cross multiply
    13,185,279.88x = 19,780,987.02 × 4,086,894.76
  4. Step 4: Simplify right side
    13,185,279.88x = 80,842,812,199,666.02
  5. Step 5: Solve for x
    x = 80,842,812,199,666.02/13,185,279.88
  6. Step 6: Final answer
    x = 6,131,292.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.