Home / 151,610,879.96-209,223,014.55-81,996,261.02

Finding the Fourth Proportional to 151,610,879.96, 209,223,014.55 and 81,996,261.02

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Solution

The fourth proportional to 151,610,879.96, 209,223,014.55 and 81,996,261.02 is: 113,154,840.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,610,879.96 : 209,223,014.55 = 81,996,261.02 : x
  2. Step 2: Convert to fraction form
    151,610,879.96/209,223,014.55 = 81,996,261.02/x
  3. Step 3: Cross multiply
    151,610,879.96x = 209,223,014.55 × 81,996,261.02
  4. Step 4: Simplify right side
    151,610,879.96x = 17,155,504,912,433,058
  5. Step 5: Solve for x
    x = 17,155,504,912,433,058/151,610,879.96
  6. Step 6: Final answer
    x = 113,154,840.32

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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.