Home / 20,785,248,003.70-31,177,872,005.55-5,275,673,859.70

Finding the Fourth Proportional to 20,785,248,003.70, 31,177,872,005.55 and 5,275,673,859.70

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Solution

The fourth proportional to 20,785,248,003.70, 31,177,872,005.55 and 5,275,673,859.70 is: 7,913,510,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,248,003.70 : 31,177,872,005.55 = 5,275,673,859.70 : x
  2. Step 2: Convert to fraction form
    20,785,248,003.70/31,177,872,005.55 = 5,275,673,859.70/x
  3. Step 3: Cross multiply
    20,785,248,003.70x = 31,177,872,005.55 × 5,275,673,859.70
  4. Step 4: Simplify right side
    20,785,248,003.70x = 164,484,284,340,752,547,840
  5. Step 5: Solve for x
    x = 164,484,284,340,752,547,840/20,785,248,003.70
  6. Step 6: Final answer
    x = 7,913,510,789.55

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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.