Home / 638,568,008.40-957,852,012.60-632,521,390.80

Finding the Fourth Proportional to 638,568,008.40, 957,852,012.60 and 632,521,390.80

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Solution

The fourth proportional to 638,568,008.40, 957,852,012.60 and 632,521,390.80 is: 948,782,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,568,008.40 : 957,852,012.60 = 632,521,390.80 : x
  2. Step 2: Convert to fraction form
    638,568,008.40/957,852,012.60 = 632,521,390.80/x
  3. Step 3: Cross multiply
    638,568,008.40x = 957,852,012.60 × 632,521,390.80
  4. Step 4: Simplify right side
    638,568,008.40x = 605,861,887,190,331,136
  5. Step 5: Solve for x
    x = 605,861,887,190,331,136/638,568,008.40
  6. Step 6: Final answer
    x = 948,782,086.20

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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.