Home / 638,568,009.40-957,852,014.10-632,521,391.80

Finding the Fourth Proportional to 638,568,009.40, 957,852,014.10 and 632,521,391.80

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Solution

The fourth proportional to 638,568,009.40, 957,852,014.10 and 632,521,391.80 is: 948,782,087.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,568,009.40 : 957,852,014.10 = 632,521,391.80 : x
  2. Step 2: Convert to fraction form
    638,568,009.40/957,852,014.10 = 632,521,391.80/x
  3. Step 3: Cross multiply
    638,568,009.40x = 957,852,014.10 × 632,521,391.80
  4. Step 4: Simplify right side
    638,568,009.40x = 605,861,889,096,965,248
  5. Step 5: Solve for x
    x = 605,861,889,096,965,248/638,568,009.40
  6. Step 6: Final answer
    x = 948,782,087.70

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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.