Home / 172,604,512.80-258,732,586.80-86,210,042.40

Finding the Fourth Proportional to 172,604,512.80, 258,732,586.80 and 86,210,042.40

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Solution

The fourth proportional to 172,604,512.80, 258,732,586.80 and 86,210,042.40 is: 129,228,065.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,604,512.80 : 258,732,586.80 = 86,210,042.40 : x
  2. Step 2: Convert to fraction form
    172,604,512.80/258,732,586.80 = 86,210,042.40/x
  3. Step 3: Cross multiply
    172,604,512.80x = 258,732,586.80 × 86,210,042.40
  4. Step 4: Simplify right side
    172,604,512.80x = 22,305,347,278,289,684
  5. Step 5: Solve for x
    x = 22,305,347,278,289,684/172,604,512.80
  6. Step 6: Final answer
    x = 129,228,065.46

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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.