Home / 115,087,477.20-172,347,780.60-54,432,344.40

Finding the Fourth Proportional to 115,087,477.20, 172,347,780.60 and 54,432,344.40

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Solution

The fourth proportional to 115,087,477.20, 172,347,780.60 and 54,432,344.40 is: 81,514,461.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,087,477.20 : 172,347,780.60 = 54,432,344.40 : x
  2. Step 2: Convert to fraction form
    115,087,477.20/172,347,780.60 = 54,432,344.40/x
  3. Step 3: Cross multiply
    115,087,477.20x = 172,347,780.60 × 54,432,344.40
  4. Step 4: Simplify right side
    115,087,477.20x = 9,381,293,750,194,838
  5. Step 5: Solve for x
    x = 9,381,293,750,194,838/115,087,477.20
  6. Step 6: Final answer
    x = 81,514,461.68

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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.