Home / 145,540,972.40-218,311,458.60-143,627,784.80

Finding the Fourth Proportional to 145,540,972.40, 218,311,458.60 and 143,627,784.80

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Solution

The fourth proportional to 145,540,972.40, 218,311,458.60 and 143,627,784.80 is: 215,441,677.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,540,972.40 : 218,311,458.60 = 143,627,784.80 : x
  2. Step 2: Convert to fraction form
    145,540,972.40/218,311,458.60 = 143,627,784.80/x
  3. Step 3: Cross multiply
    145,540,972.40x = 218,311,458.60 × 143,627,784.80
  4. Step 4: Simplify right side
    145,540,972.40x = 31,355,591,195,174,912
  5. Step 5: Solve for x
    x = 31,355,591,195,174,912/145,540,972.40
  6. Step 6: Final answer
    x = 215,441,677.20

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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.