Home / 78,275,801.44-108,021,902.70-42,996,868.24

Finding the Fourth Proportional to 78,275,801.44, 108,021,902.70 and 42,996,868.24

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Solution

The fourth proportional to 78,275,801.44, 108,021,902.70 and 42,996,868.24 is: 59,336,390.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,275,801.44 : 108,021,902.70 = 42,996,868.24 : x
  2. Step 2: Convert to fraction form
    78,275,801.44/108,021,902.70 = 42,996,868.24/x
  3. Step 3: Cross multiply
    78,275,801.44x = 108,021,902.70 × 42,996,868.24
  4. Step 4: Simplify right side
    78,275,801.44x = 4,644,603,517,426,001
  5. Step 5: Solve for x
    x = 4,644,603,517,426,001/78,275,801.44
  6. Step 6: Final answer
    x = 59,336,390.46

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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.