Home / 138,694,516.85-191,397,955.51-79,956,901.91

Finding the Fourth Proportional to 138,694,516.85, 191,397,955.51 and 79,956,901.91

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Solution

The fourth proportional to 138,694,516.85, 191,397,955.51 and 79,956,901.91 is: 110,340,249.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,694,516.85 : 191,397,955.51 = 79,956,901.91 : x
  2. Step 2: Convert to fraction form
    138,694,516.85/191,397,955.51 = 79,956,901.91/x
  3. Step 3: Cross multiply
    138,694,516.85x = 191,397,955.51 × 79,956,901.91
  4. Step 4: Simplify right side
    138,694,516.85x = 15,303,587,554,487,612
  5. Step 5: Solve for x
    x = 15,303,587,554,487,612/138,694,516.85
  6. Step 6: Final answer
    x = 110,340,249.22

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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.