Home / 104,976,031.20-157,464,046.80-78,899,992.80

Finding the Fourth Proportional to 104,976,031.20, 157,464,046.80 and 78,899,992.80

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Solution

The fourth proportional to 104,976,031.20, 157,464,046.80 and 78,899,992.80 is: 118,349,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,976,031.20 : 157,464,046.80 = 78,899,992.80 : x
  2. Step 2: Convert to fraction form
    104,976,031.20/157,464,046.80 = 78,899,992.80/x
  3. Step 3: Cross multiply
    104,976,031.20x = 157,464,046.80 × 78,899,992.80
  4. Step 4: Simplify right side
    104,976,031.20x = 12,423,912,158,778,864
  5. Step 5: Solve for x
    x = 12,423,912,158,778,864/104,976,031.20
  6. Step 6: Final answer
    x = 118,349,989.20

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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.