Home / 138,677,150.07-191,370,804.26-79,137,379.04

Finding the Fourth Proportional to 138,677,150.07, 191,370,804.26 and 79,137,379.04

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Solution

The fourth proportional to 138,677,150.07, 191,370,804.26 and 79,137,379.04 is: 109,207,492.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,677,150.07 : 191,370,804.26 = 79,137,379.04 : x
  2. Step 2: Convert to fraction form
    138,677,150.07/191,370,804.26 = 79,137,379.04/x
  3. Step 3: Cross multiply
    138,677,150.07x = 191,370,804.26 × 79,137,379.04
  4. Step 4: Simplify right side
    138,677,150.07x = 15,144,583,872,560,724
  5. Step 5: Solve for x
    x = 15,144,583,872,560,724/138,677,150.07
  6. Step 6: Final answer
    x = 109,207,492.83

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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.