Home / 78,847,897.70-118,271,846.55-33,403,787.30

Finding the Fourth Proportional to 78,847,897.70, 118,271,846.55 and 33,403,787.30

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Solution

The fourth proportional to 78,847,897.70, 118,271,846.55 and 33,403,787.30 is: 50,105,680.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,847,897.70 : 118,271,846.55 = 33,403,787.30 : x
  2. Step 2: Convert to fraction form
    78,847,897.70/118,271,846.55 = 33,403,787.30/x
  3. Step 3: Cross multiply
    78,847,897.70x = 118,271,846.55 × 33,403,787.30
  4. Step 4: Simplify right side
    78,847,897.70x = 3,950,727,605,734,439
  5. Step 5: Solve for x
    x = 3,950,727,605,734,439/78,847,897.70
  6. Step 6: Final answer
    x = 50,105,680.95

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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.