Home / 647,036,401.20-970,554,601.80-284,239,345.20

Finding the Fourth Proportional to 647,036,401.20, 970,554,601.80 and 284,239,345.20

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Solution

The fourth proportional to 647,036,401.20, 970,554,601.80 and 284,239,345.20 is: 426,359,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,036,401.20 : 970,554,601.80 = 284,239,345.20 : x
  2. Step 2: Convert to fraction form
    647,036,401.20/970,554,601.80 = 284,239,345.20/x
  3. Step 3: Cross multiply
    647,036,401.20x = 970,554,601.80 × 284,239,345.20
  4. Step 4: Simplify right side
    647,036,401.20x = 275,869,804,496,478,720
  5. Step 5: Solve for x
    x = 275,869,804,496,478,720/647,036,401.20
  6. Step 6: Final answer
    x = 426,359,017.80

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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.