Home / 78,714,575.94-108,620,865.99-45,225,132.42

Finding the Fourth Proportional to 78,714,575.94, 108,620,865.99 and 45,225,132.42

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Solution

The fourth proportional to 78,714,575.94, 108,620,865.99 and 45,225,132.42 is: 62,407,667.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,714,575.94 : 108,620,865.99 = 45,225,132.42 : x
  2. Step 2: Convert to fraction form
    78,714,575.94/108,620,865.99 = 45,225,132.42/x
  3. Step 3: Cross multiply
    78,714,575.94x = 108,620,865.99 × 45,225,132.42
  4. Step 4: Simplify right side
    78,714,575.94x = 4,912,393,047,972,824
  5. Step 5: Solve for x
    x = 4,912,393,047,972,824/78,714,575.94
  6. Step 6: Final answer
    x = 62,407,667.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.