Home / 84,643,772.80-126,965,659.20-52,190,442.40

Finding the Fourth Proportional to 84,643,772.80, 126,965,659.20 and 52,190,442.40

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Solution

The fourth proportional to 84,643,772.80, 126,965,659.20 and 52,190,442.40 is: 78,285,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,643,772.80 : 126,965,659.20 = 52,190,442.40 : x
  2. Step 2: Convert to fraction form
    84,643,772.80/126,965,659.20 = 52,190,442.40/x
  3. Step 3: Cross multiply
    84,643,772.80x = 126,965,659.20 × 52,190,442.40
  4. Step 4: Simplify right side
    84,643,772.80x = 6,626,393,923,255,630
  5. Step 5: Solve for x
    x = 6,626,393,923,255,630/84,643,772.80
  6. Step 6: Final answer
    x = 78,285,663.60

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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.