Home / 151,609,453.84-209,221,046.15-81,994,834.65

Finding the Fourth Proportional to 151,609,453.84, 209,221,046.15 and 81,994,834.65

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Solution

The fourth proportional to 151,609,453.84, 209,221,046.15 and 81,994,834.65 is: 113,152,871.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,609,453.84 : 209,221,046.15 = 81,994,834.65 : x
  2. Step 2: Convert to fraction form
    151,609,453.84/209,221,046.15 = 81,994,834.65/x
  3. Step 3: Cross multiply
    151,609,453.84x = 209,221,046.15 × 81,994,834.65
  4. Step 4: Simplify right side
    151,609,453.84x = 17,155,045,083,445,658
  5. Step 5: Solve for x
    x = 17,155,045,083,445,658/151,609,453.84
  6. Step 6: Final answer
    x = 113,152,871.73

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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.