Home / 12,288,777,891-16,953,109,320.78-7,205,547,204.60

Finding the Fourth Proportional to 12,288,777,891, 16,953,109,320.78 and 7,205,547,204.60

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Solution

The fourth proportional to 12,288,777,891, 16,953,109,320.78 and 7,205,547,204.60 is: 9,940,486,398.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288,777,891 : 16,953,109,320.78 = 7,205,547,204.60 : x
  2. Step 2: Convert to fraction form
    12,288,777,891/16,953,109,320.78 = 7,205,547,204.60/x
  3. Step 3: Cross multiply
    12,288,777,891x = 16,953,109,320.78 × 7,205,547,204.60
  4. Step 4: Simplify right side
    12,288,777,891x = 122,156,429,475,624,550,400
  5. Step 5: Solve for x
    x = 122,156,429,475,624,550,400/12,288,777,891
  6. Step 6: Final answer
    x = 9,940,486,398.17

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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.