Home / 123,854,365.20-185,923,265.40-72,765,170.40

Finding the Fourth Proportional to 123,854,365.20, 185,923,265.40 and 72,765,170.40

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Solution

The fourth proportional to 123,854,365.20, 185,923,265.40 and 72,765,170.40 is: 109,231,015.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,854,365.20 : 185,923,265.40 = 72,765,170.40 : x
  2. Step 2: Convert to fraction form
    123,854,365.20/185,923,265.40 = 72,765,170.40/x
  3. Step 3: Cross multiply
    123,854,365.20x = 185,923,265.40 × 72,765,170.40
  4. Step 4: Simplify right side
    123,854,365.20x = 13,528,738,088,155,426
  5. Step 5: Solve for x
    x = 13,528,738,088,155,426/123,854,365.20
  6. Step 6: Final answer
    x = 109,231,015.53

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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.