Home / 120,853,605.51-166,777,999.61-65,849,462.01

Finding the Fourth Proportional to 120,853,605.51, 166,777,999.61 and 65,849,462.01

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Solution

The fourth proportional to 120,853,605.51, 166,777,999.61 and 65,849,462.01 is: 90,872,270.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,853,605.51 : 166,777,999.61 = 65,849,462.01 : x
  2. Step 2: Convert to fraction form
    120,853,605.51/166,777,999.61 = 65,849,462.01/x
  3. Step 3: Cross multiply
    120,853,605.51x = 166,777,999.61 × 65,849,462.01
  4. Step 4: Simplify right side
    120,853,605.51x = 10,982,241,549,093,242
  5. Step 5: Solve for x
    x = 10,982,241,549,093,242/120,853,605.51
  6. Step 6: Final answer
    x = 90,872,270.65

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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.