Home / 257,267,649-355,028,582.64-139,793,337.66

Finding the Fourth Proportional to 257,267,649, 355,028,582.64 and 139,793,337.66

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Solution

The fourth proportional to 257,267,649, 355,028,582.64 and 139,793,337.66 is: 192,914,385.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,267,649 : 355,028,582.64 = 139,793,337.66 : x
  2. Step 2: Convert to fraction form
    257,267,649/355,028,582.64 = 139,793,337.66/x
  3. Step 3: Cross multiply
    257,267,649x = 355,028,582.64 × 139,793,337.66
  4. Step 4: Simplify right side
    257,267,649x = 49,630,630,531,944,728
  5. Step 5: Solve for x
    x = 49,630,630,531,944,728/257,267,649
  6. Step 6: Final answer
    x = 192,914,385.95

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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.