Home / 172,647,231.80-258,750,398.10-70,295,631.80

Finding the Fourth Proportional to 172,647,231.80, 258,750,398.10 and 70,295,631.80

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Solution

The fourth proportional to 172,647,231.80, 258,750,398.10 and 70,295,631.80 is: 105,353,688.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,647,231.80 : 258,750,398.10 = 70,295,631.80 : x
  2. Step 2: Convert to fraction form
    172,647,231.80/258,750,398.10 = 70,295,631.80/x
  3. Step 3: Cross multiply
    172,647,231.80x = 258,750,398.10 × 70,295,631.80
  4. Step 4: Simplify right side
    172,647,231.80x = 18,189,022,712,941,020
  5. Step 5: Solve for x
    x = 18,189,022,712,941,020/172,647,231.80
  6. Step 6: Final answer
    x = 105,353,688.69

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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.