Home / 21,275,136,015.15-31,912,704,022.73-21,057,457,781.55

Finding the Fourth Proportional to 21,275,136,015.15, 31,912,704,022.73 and 21,057,457,781.55

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Solution

The fourth proportional to 21,275,136,015.15, 31,912,704,022.73 and 21,057,457,781.55 is: 31,586,186,672.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,136,015.15 : 31,912,704,022.73 = 21,057,457,781.55 : x
  2. Step 2: Convert to fraction form
    21,275,136,015.15/31,912,704,022.73 = 21,057,457,781.55/x
  3. Step 3: Cross multiply
    21,275,136,015.15x = 31,912,704,022.73 × 21,057,457,781.55
  4. Step 4: Simplify right side
    21,275,136,015.15x = 672,000,417,653,632,532,480
  5. Step 5: Solve for x
    x = 672,000,417,653,632,532,480/21,275,136,015.15
  6. Step 6: Final answer
    x = 31,586,186,672.33

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1.5x scale

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.