Home / 432,035,977.50-647,980,934.08-121,072,078.08

Finding the Fourth Proportional to 432,035,977.50, 647,980,934.08 and 121,072,078.08

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Solution

The fourth proportional to 432,035,977.50, 647,980,934.08 and 121,072,078.08 is: 181,587,650.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,035,977.50 : 647,980,934.08 = 121,072,078.08 : x
  2. Step 2: Convert to fraction form
    432,035,977.50/647,980,934.08 = 121,072,078.08/x
  3. Step 3: Cross multiply
    432,035,977.50x = 647,980,934.08 × 121,072,078.08
  4. Step 4: Simplify right side
    432,035,977.50x = 78,452,398,245,285,104
  5. Step 5: Solve for x
    x = 78,452,398,245,285,104/432,035,977.50
  6. Step 6: Final answer
    x = 181,587,650.87

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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.