Home / 120,290,539.38-166,001,104.53-65,286,395.88

Finding the Fourth Proportional to 120,290,539.38, 166,001,104.53 and 65,286,395.88

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Solution

The fourth proportional to 120,290,539.38, 166,001,104.53 and 65,286,395.88 is: 90,095,313.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,290,539.38 : 166,001,104.53 = 65,286,395.88 : x
  2. Step 2: Convert to fraction form
    120,290,539.38/166,001,104.53 = 65,286,395.88/x
  3. Step 3: Cross multiply
    120,290,539.38x = 166,001,104.53 × 65,286,395.88
  4. Step 4: Simplify right side
    120,290,539.38x = 10,837,613,826,862,842
  5. Step 5: Solve for x
    x = 10,837,613,826,862,842/120,290,539.38
  6. Step 6: Final answer
    x = 90,095,313.25

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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.