Home / 78,186,274.42-107,897,072.04-43,378,881.82

Finding the Fourth Proportional to 78,186,274.42, 107,897,072.04 and 43,378,881.82

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Solution

The fourth proportional to 78,186,274.42, 107,897,072.04 and 43,378,881.82 is: 59,862,864.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,186,274.42 : 107,897,072.04 = 43,378,881.82 : x
  2. Step 2: Convert to fraction form
    78,186,274.42/107,897,072.04 = 43,378,881.82/x
  3. Step 3: Cross multiply
    78,186,274.42x = 107,897,072.04 × 43,378,881.82
  4. Step 4: Simplify right side
    78,186,274.42x = 4,680,454,336,747,187
  5. Step 5: Solve for x
    x = 4,680,454,336,747,187/78,186,274.42
  6. Step 6: Final answer
    x = 59,862,864.31

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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.