Home / 145,627,891.20-218,441,836.80-133,156,742.40

Finding the Fourth Proportional to 145,627,891.20, 218,441,836.80 and 133,156,742.40

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Solution

The fourth proportional to 145,627,891.20, 218,441,836.80 and 133,156,742.40 is: 199,735,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,627,891.20 : 218,441,836.80 = 133,156,742.40 : x
  2. Step 2: Convert to fraction form
    145,627,891.20/218,441,836.80 = 133,156,742.40/x
  3. Step 3: Cross multiply
    145,627,891.20x = 218,441,836.80 × 133,156,742.40
  4. Step 4: Simplify right side
    145,627,891.20x = 29,087,003,392,160,444
  5. Step 5: Solve for x
    x = 29,087,003,392,160,444/145,627,891.20
  6. Step 6: Final answer
    x = 199,735,113.60

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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.