Home / 209,198,433.10-288,685,168.54-113,829,335.61

Finding the Fourth Proportional to 209,198,433.10, 288,685,168.54 and 113,829,335.61

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Solution

The fourth proportional to 209,198,433.10, 288,685,168.54 and 113,829,335.61 is: 157,079,766.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,198,433.10 : 288,685,168.54 = 113,829,335.61 : x
  2. Step 2: Convert to fraction form
    209,198,433.10/288,685,168.54 = 113,829,335.61/x
  3. Step 3: Cross multiply
    209,198,433.10x = 288,685,168.54 × 113,829,335.61
  4. Step 4: Simplify right side
    209,198,433.10x = 32,860,840,935,369,076
  5. Step 5: Solve for x
    x = 32,860,840,935,369,076/209,198,433.10
  6. Step 6: Final answer
    x = 157,079,766.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.