Home / 98,372,679.72-135,766,267.20-57,119,571.96

Finding the Fourth Proportional to 98,372,679.72, 135,766,267.20 and 57,119,571.96

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Solution

The fourth proportional to 98,372,679.72, 135,766,267.20 and 57,119,571.96 is: 78,831,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,372,679.72 : 135,766,267.20 = 57,119,571.96 : x
  2. Step 2: Convert to fraction form
    98,372,679.72/135,766,267.20 = 57,119,571.96/x
  3. Step 3: Cross multiply
    98,372,679.72x = 135,766,267.20 × 57,119,571.96
  4. Step 4: Simplify right side
    98,372,679.72x = 7,754,911,069,070,987
  5. Step 5: Solve for x
    x = 7,754,911,069,070,987/98,372,679.72
  6. Step 6: Final answer
    x = 78,831,959.15

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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.