Home / 120,290,723.52-166,001,362.56-65,286,580.80

Finding the Fourth Proportional to 120,290,723.52, 166,001,362.56 and 65,286,580.80

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Solution

The fourth proportional to 120,290,723.52, 166,001,362.56 and 65,286,580.80 is: 90,095,570.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,290,723.52 : 166,001,362.56 = 65,286,580.80 : x
  2. Step 2: Convert to fraction form
    120,290,723.52/166,001,362.56 = 65,286,580.80/x
  3. Step 3: Cross multiply
    120,290,723.52x = 166,001,362.56 × 65,286,580.80
  4. Step 4: Simplify right side
    120,290,723.52x = 10,837,661,369,683,534
  5. Step 5: Solve for x
    x = 10,837,661,369,683,534/120,290,723.52
  6. Step 6: Final answer
    x = 90,095,570.57

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1.5x scale

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.