Home / 84,643,764.80-126,965,647.20-52,190,434.40

Finding the Fourth Proportional to 84,643,764.80, 126,965,647.20 and 52,190,434.40

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Solution

The fourth proportional to 84,643,764.80, 126,965,647.20 and 52,190,434.40 is: 78,285,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,643,764.80 : 126,965,647.20 = 52,190,434.40 : x
  2. Step 2: Convert to fraction form
    84,643,764.80/126,965,647.20 = 52,190,434.40/x
  3. Step 3: Cross multiply
    84,643,764.80x = 126,965,647.20 × 52,190,434.40
  4. Step 4: Simplify right side
    84,643,764.80x = 6,626,392,281,245,144
  5. Step 5: Solve for x
    x = 6,626,392,281,245,144/84,643,764.80
  6. Step 6: Final answer
    x = 78,285,651.60

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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.