Home / 52,279,811,659.71-78,257,391,884.96-28,316,802,161.07

Finding the Fourth Proportional to 52,279,811,659.71, 78,257,391,884.96 and 28,316,802,161.07

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Solution

The fourth proportional to 52,279,811,659.71, 78,257,391,884.96 and 28,316,802,161.07 is: 42,387,281,309.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,279,811,659.71 : 78,257,391,884.96 = 28,316,802,161.07 : x
  2. Step 2: Convert to fraction form
    52,279,811,659.71/78,257,391,884.96 = 28,316,802,161.07/x
  3. Step 3: Cross multiply
    52,279,811,659.71x = 78,257,391,884.96 × 28,316,802,161.07
  4. Step 4: Simplify right side
    52,279,811,659.71x = 2,215,999,083,647,595,708,416
  5. Step 5: Solve for x
    x = 2,215,999,083,647,595,708,416/52,279,811,659.71
  6. Step 6: Final answer
    x = 42,387,281,309.88

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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.