Home / 78,701,742.71-108,608,549.87-43,896,676.54

Finding the Fourth Proportional to 78,701,742.71, 108,608,549.87 and 43,896,676.54

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Solution

The fourth proportional to 78,701,742.71, 108,608,549.87 and 43,896,676.54 is: 60,577,494.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,701,742.71 : 108,608,549.87 = 43,896,676.54 : x
  2. Step 2: Convert to fraction form
    78,701,742.71/108,608,549.87 = 43,896,676.54/x
  3. Step 3: Cross multiply
    78,701,742.71x = 108,608,549.87 × 43,896,676.54
  4. Step 4: Simplify right side
    78,701,742.71x = 4,767,554,382,359,322
  5. Step 5: Solve for x
    x = 4,767,554,382,359,322/78,701,742.71
  6. Step 6: Final answer
    x = 60,577,494.45

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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.