Home / 78,059,934.78-107,722,603.35-43,254,878.46

Finding the Fourth Proportional to 78,059,934.78, 107,722,603.35 and 43,254,878.46

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Solution

The fourth proportional to 78,059,934.78, 107,722,603.35 and 43,254,878.46 is: 59,691,673.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,059,934.78 : 107,722,603.35 = 43,254,878.46 : x
  2. Step 2: Convert to fraction form
    78,059,934.78/107,722,603.35 = 43,254,878.46/x
  3. Step 3: Cross multiply
    78,059,934.78x = 107,722,603.35 × 43,254,878.46
  4. Step 4: Simplify right side
    78,059,934.78x = 4,659,528,115,299,039
  5. Step 5: Solve for x
    x = 4,659,528,115,299,039/78,059,934.78
  6. Step 6: Final answer
    x = 59,691,673.18

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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.