Home / 78,701,745.72-108,608,554.02-43,896,679.56

Finding the Fourth Proportional to 78,701,745.72, 108,608,554.02 and 43,896,679.56

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Solution

The fourth proportional to 78,701,745.72, 108,608,554.02 and 43,896,679.56 is: 60,577,498.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,701,745.72 : 108,608,554.02 = 43,896,679.56 : x
  2. Step 2: Convert to fraction form
    78,701,745.72/108,608,554.02 = 43,896,679.56/x
  3. Step 3: Cross multiply
    78,701,745.72x = 108,608,554.02 × 43,896,679.56
  4. Step 4: Simplify right side
    78,701,745.72x = 4,767,554,893,290,890
  5. Step 5: Solve for x
    x = 4,767,554,893,290,890/78,701,745.72
  6. Step 6: Final answer
    x = 60,577,498.63

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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.