Home / 20,645,502,676.90-28,480,479,662.12-13,033,981,950.82

Finding the Fourth Proportional to 20,645,502,676.90, 28,480,479,662.12 and 13,033,981,950.82

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Solution

The fourth proportional to 20,645,502,676.90, 28,480,479,662.12 and 13,033,981,950.82 is: 17,980,383,605.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645,502,676.90 : 28,480,479,662.12 = 13,033,981,950.82 : x
  2. Step 2: Convert to fraction form
    20,645,502,676.90/28,480,479,662.12 = 13,033,981,950.82/x
  3. Step 3: Cross multiply
    20,645,502,676.90x = 28,480,479,662.12 × 13,033,981,950.82
  4. Step 4: Simplify right side
    20,645,502,676.90x = 371,214,057,866,768,154,624
  5. Step 5: Solve for x
    x = 371,214,057,866,768,154,624/20,645,502,676.90
  6. Step 6: Final answer
    x = 17,980,383,605.87

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Double scale
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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.