Home / 646,825,845.60-970,238,768.40-237,797,359.20

Finding the Fourth Proportional to 646,825,845.60, 970,238,768.40 and 237,797,359.20

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Solution

The fourth proportional to 646,825,845.60, 970,238,768.40 and 237,797,359.20 is: 356,696,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,825,845.60 : 970,238,768.40 = 237,797,359.20 : x
  2. Step 2: Convert to fraction form
    646,825,845.60/970,238,768.40 = 237,797,359.20/x
  3. Step 3: Cross multiply
    646,825,845.60x = 970,238,768.40 × 237,797,359.20
  4. Step 4: Simplify right side
    646,825,845.60x = 230,720,216,918,980,384
  5. Step 5: Solve for x
    x = 230,720,216,918,980,384/646,825,845.60
  6. Step 6: Final answer
    x = 356,696,038.80

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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.