Home / 209,664,401.80-314,496,602.70-172,676,108.20

Finding the Fourth Proportional to 209,664,401.80, 314,496,602.70 and 172,676,108.20

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Solution

The fourth proportional to 209,664,401.80, 314,496,602.70 and 172,676,108.20 is: 259,014,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,664,401.80 : 314,496,602.70 = 172,676,108.20 : x
  2. Step 2: Convert to fraction form
    209,664,401.80/314,496,602.70 = 172,676,108.20/x
  3. Step 3: Cross multiply
    209,664,401.80x = 314,496,602.70 × 172,676,108.20
  4. Step 4: Simplify right side
    209,664,401.80x = 54,306,049,396,357,608
  5. Step 5: Solve for x
    x = 54,306,049,396,357,608/209,664,401.80
  6. Step 6: Final answer
    x = 259,014,162.30

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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.