Home / 13,854,561,639.89-19,120,720,087.57-8,429,482,391.31

Finding the Fourth Proportional to 13,854,561,639.89, 19,120,720,087.57 and 8,429,482,391.31

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Solution

The fourth proportional to 13,854,561,639.89, 19,120,720,087.57 and 8,429,482,391.31 is: 11,633,552,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854,561,639.89 : 19,120,720,087.57 = 8,429,482,391.31 : x
  2. Step 2: Convert to fraction form
    13,854,561,639.89/19,120,720,087.57 = 8,429,482,391.31/x
  3. Step 3: Cross multiply
    13,854,561,639.89x = 19,120,720,087.57 × 8,429,482,391.31
  4. Step 4: Simplify right side
    13,854,561,639.89x = 161,177,773,287,364,034,560
  5. Step 5: Solve for x
    x = 161,177,773,287,364,034,560/13,854,561,639.89
  6. Step 6: Final answer
    x = 11,633,552,722.69

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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.