Home / 139,079,650.50-191,920,310.64-77,195,117.52

Finding the Fourth Proportional to 139,079,650.50, 191,920,310.64 and 77,195,117.52

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Solution

The fourth proportional to 139,079,650.50, 191,920,310.64 and 77,195,117.52 is: 106,523,929.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,079,650.50 : 191,920,310.64 = 77,195,117.52 : x
  2. Step 2: Convert to fraction form
    139,079,650.50/191,920,310.64 = 77,195,117.52/x
  3. Step 3: Cross multiply
    139,079,650.50x = 191,920,310.64 × 77,195,117.52
  4. Step 4: Simplify right side
    139,079,650.50x = 14,815,310,934,329,704
  5. Step 5: Solve for x
    x = 14,815,310,934,329,704/139,079,650.50
  6. Step 6: Final answer
    x = 106,523,929.86

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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.