Home / 118,679,907.30-178,019,860.95-72,763,404.90

Finding the Fourth Proportional to 118,679,907.30, 178,019,860.95 and 72,763,404.90

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Solution

The fourth proportional to 118,679,907.30, 178,019,860.95 and 72,763,404.90 is: 109,145,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,679,907.30 : 178,019,860.95 = 72,763,404.90 : x
  2. Step 2: Convert to fraction form
    118,679,907.30/178,019,860.95 = 72,763,404.90/x
  3. Step 3: Cross multiply
    118,679,907.30x = 178,019,860.95 × 72,763,404.90
  4. Step 4: Simplify right side
    118,679,907.30x = 12,953,331,222,546,548
  5. Step 5: Solve for x
    x = 12,953,331,222,546,548/118,679,907.30
  6. Step 6: Final answer
    x = 109,145,107.35

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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.