Home / 489,975,000.30-734,962,500.45-217,345,767.30

Finding the Fourth Proportional to 489,975,000.30, 734,962,500.45 and 217,345,767.30

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Solution

The fourth proportional to 489,975,000.30, 734,962,500.45 and 217,345,767.30 is: 326,018,650.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,975,000.30 : 734,962,500.45 = 217,345,767.30 : x
  2. Step 2: Convert to fraction form
    489,975,000.30/734,962,500.45 = 217,345,767.30/x
  3. Step 3: Cross multiply
    489,975,000.30x = 734,962,500.45 × 217,345,767.30
  4. Step 4: Simplify right side
    489,975,000.30x = 159,740,988,597,031,872
  5. Step 5: Solve for x
    x = 159,740,988,597,031,872/489,975,000.30
  6. Step 6: Final answer
    x = 326,018,650.95

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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.