Home / 145,728,657.20-218,617,480.20-43,503,028.40

Finding the Fourth Proportional to 145,728,657.20, 218,617,480.20 and 43,503,028.40

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Solution

The fourth proportional to 145,728,657.20, 218,617,480.20 and 43,503,028.40 is: 65,261,854.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,728,657.20 : 218,617,480.20 = 43,503,028.40 : x
  2. Step 2: Convert to fraction form
    145,728,657.20/218,617,480.20 = 43,503,028.40/x
  3. Step 3: Cross multiply
    145,728,657.20x = 218,617,480.20 × 43,503,028.40
  4. Step 4: Simplify right side
    145,728,657.20x = 9,510,522,449,877,036
  5. Step 5: Solve for x
    x = 9,510,522,449,877,036/145,728,657.20
  6. Step 6: Final answer
    x = 65,261,854.69

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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.