Home / 12,865,206,956.31-17,754,416,707.46-7,149,732,238.44

Finding the Fourth Proportional to 12,865,206,956.31, 17,754,416,707.46 and 7,149,732,238.44

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Solution

The fourth proportional to 12,865,206,956.31, 17,754,416,707.46 and 7,149,732,238.44 is: 9,866,870,073.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865,206,956.31 : 17,754,416,707.46 = 7,149,732,238.44 : x
  2. Step 2: Convert to fraction form
    12,865,206,956.31/17,754,416,707.46 = 7,149,732,238.44/x
  3. Step 3: Cross multiply
    12,865,206,956.31x = 17,754,416,707.46 × 7,149,732,238.44
  4. Step 4: Simplify right side
    12,865,206,956.31x = 126,939,325,507,988,783,104
  5. Step 5: Solve for x
    x = 126,939,325,507,988,783,104/12,865,206,956.31
  6. Step 6: Final answer
    x = 9,866,870,073.61

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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.