Home / 172,679,328.90-259,153,311.20-120,525,115.73

Finding the Fourth Proportional to 172,679,328.90, 259,153,311.20 and 120,525,115.73

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Solution

The fourth proportional to 172,679,328.90, 259,153,311.20 and 120,525,115.73 is: 180,881,423.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,679,328.90 : 259,153,311.20 = 120,525,115.73 : x
  2. Step 2: Convert to fraction form
    172,679,328.90/259,153,311.20 = 120,525,115.73/x
  3. Step 3: Cross multiply
    172,679,328.90x = 259,153,311.20 × 120,525,115.73
  4. Step 4: Simplify right side
    172,679,328.90x = 31,234,482,822,294,312
  5. Step 5: Solve for x
    x = 31,234,482,822,294,312/172,679,328.90
  6. Step 6: Final answer
    x = 180,881,423.51

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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.