Home / 297,205,715.20-445,430,659.20-143,520,851.20

Finding the Fourth Proportional to 297,205,715.20, 445,430,659.20 and 143,520,851.20

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Solution

The fourth proportional to 297,205,715.20, 445,430,659.20 and 143,520,851.20 is: 215,098,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,205,715.20 : 445,430,659.20 = 143,520,851.20 : x
  2. Step 2: Convert to fraction form
    297,205,715.20/445,430,659.20 = 143,520,851.20/x
  3. Step 3: Cross multiply
    297,205,715.20x = 445,430,659.20 × 143,520,851.20
  4. Step 4: Simplify right side
    297,205,715.20x = 63,928,587,358,961,104
  5. Step 5: Solve for x
    x = 63,928,587,358,961,104/297,205,715.20
  6. Step 6: Final answer
    x = 215,098,782.05

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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.