Home / 647,036,195.20-970,554,292.80-284,239,139.20

Finding the Fourth Proportional to 647,036,195.20, 970,554,292.80 and 284,239,139.20

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Solution

The fourth proportional to 647,036,195.20, 970,554,292.80 and 284,239,139.20 is: 426,358,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,036,195.20 : 970,554,292.80 = 284,239,139.20 : x
  2. Step 2: Convert to fraction form
    647,036,195.20/970,554,292.80 = 284,239,139.20/x
  3. Step 3: Cross multiply
    647,036,195.20x = 970,554,292.80 × 284,239,139.20
  4. Step 4: Simplify right side
    647,036,195.20x = 275,869,516,732,336,736
  5. Step 5: Solve for x
    x = 275,869,516,732,336,736/647,036,195.20
  6. Step 6: Final answer
    x = 426,358,708.80

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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.