Home / 625,347,990.40-938,028,721.14-188,652,457.92

Finding the Fourth Proportional to 625,347,990.40, 938,028,721.14 and 188,652,457.92

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Solution

The fourth proportional to 625,347,990.40, 938,028,721.14 and 188,652,457.92 is: 282,980,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,347,990.40 : 938,028,721.14 = 188,652,457.92 : x
  2. Step 2: Convert to fraction form
    625,347,990.40/938,028,721.14 = 188,652,457.92/x
  3. Step 3: Cross multiply
    625,347,990.40x = 938,028,721.14 × 188,652,457.92
  4. Step 4: Simplify right side
    625,347,990.40x = 176,961,423,842,615,264
  5. Step 5: Solve for x
    x = 176,961,423,842,615,264/625,347,990.40
  6. Step 6: Final answer
    x = 282,980,718.83

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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.