Home / 443,235,216.70-664,852,825.05-259,569,207.10

Finding the Fourth Proportional to 443,235,216.70, 664,852,825.05 and 259,569,207.10

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Solution

The fourth proportional to 443,235,216.70, 664,852,825.05 and 259,569,207.10 is: 389,353,810.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,235,216.70 : 664,852,825.05 = 259,569,207.10 : x
  2. Step 2: Convert to fraction form
    443,235,216.70/664,852,825.05 = 259,569,207.10/x
  3. Step 3: Cross multiply
    443,235,216.70x = 664,852,825.05 × 259,569,207.10
  4. Step 4: Simplify right side
    443,235,216.70x = 172,575,320,636,423,488
  5. Step 5: Solve for x
    x = 172,575,320,636,423,488/443,235,216.70
  6. Step 6: Final answer
    x = 389,353,810.65

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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.