Home / 78,417,628.20-117,626,442.30-27,282,652.20

Finding the Fourth Proportional to 78,417,628.20, 117,626,442.30 and 27,282,652.20

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Solution

The fourth proportional to 78,417,628.20, 117,626,442.30 and 27,282,652.20 is: 40,923,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,417,628.20 : 117,626,442.30 = 27,282,652.20 : x
  2. Step 2: Convert to fraction form
    78,417,628.20/117,626,442.30 = 27,282,652.20/x
  3. Step 3: Cross multiply
    78,417,628.20x = 117,626,442.30 × 27,282,652.20
  4. Step 4: Simplify right side
    78,417,628.20x = 3,209,161,314,794,268
  5. Step 5: Solve for x
    x = 3,209,161,314,794,268/78,417,628.20
  6. Step 6: Final answer
    x = 40,923,978.30

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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.