Home / 198,543,610.80-298,058,027.40-112,341,985.20

Finding the Fourth Proportional to 198,543,610.80, 298,058,027.40 and 112,341,985.20

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Solution

The fourth proportional to 198,543,610.80, 298,058,027.40 and 112,341,985.20 is: 168,650,254.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,543,610.80 : 298,058,027.40 = 112,341,985.20 : x
  2. Step 2: Convert to fraction form
    198,543,610.80/298,058,027.40 = 112,341,985.20/x
  3. Step 3: Cross multiply
    198,543,610.80x = 298,058,027.40 × 112,341,985.20
  4. Step 4: Simplify right side
    198,543,610.80x = 33,484,430,502,911,992
  5. Step 5: Solve for x
    x = 33,484,430,502,911,992/198,543,610.80
  6. Step 6: Final answer
    x = 168,650,254.56

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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.