Home / 138,759,066,034.26-191,550,254,817.18-87,393,115,555.71

Finding the Fourth Proportional to 138,759,066,034.26, 191,550,254,817.18 and 87,393,115,555.71

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Solution

The fourth proportional to 138,759,066,034.26, 191,550,254,817.18 and 87,393,115,555.71 is: 120,642,016,643.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,759,066,034.26 : 191,550,254,817.18 = 87,393,115,555.71 : x
  2. Step 2: Convert to fraction form
    138,759,066,034.26/191,550,254,817.18 = 87,393,115,555.71/x
  3. Step 3: Cross multiply
    138,759,066,034.26x = 191,550,254,817.18 × 87,393,115,555.71
  4. Step 4: Simplify right side
    138,759,066,034.26x = 16,740,173,553,963,508,957,184
  5. Step 5: Solve for x
    x = 16,740,173,553,963,508,957,184/138,759,066,034.26
  6. Step 6: Final answer
    x = 120,642,016,643.66

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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.