Home / 144,264,872.88-199,085,014.89-78,186,974.76

Finding the Fourth Proportional to 144,264,872.88, 199,085,014.89 and 78,186,974.76

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Solution

The fourth proportional to 144,264,872.88, 199,085,014.89 and 78,186,974.76 is: 107,897,748.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,264,872.88 : 199,085,014.89 = 78,186,974.76 : x
  2. Step 2: Convert to fraction form
    144,264,872.88/199,085,014.89 = 78,186,974.76/x
  3. Step 3: Cross multiply
    144,264,872.88x = 199,085,014.89 × 78,186,974.76
  4. Step 4: Simplify right side
    144,264,872.88x = 15,565,855,034,298,654
  5. Step 5: Solve for x
    x = 15,565,855,034,298,654/144,264,872.88
  6. Step 6: Final answer
    x = 107,897,748.94

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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.