Home / 807,237,846.40-1,210,856,769.60-438,949,233.40

Finding the Fourth Proportional to 807,237,846.40, 1,210,856,769.60 and 438,949,233.40

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Solution

The fourth proportional to 807,237,846.40, 1,210,856,769.60 and 438,949,233.40 is: 658,423,850.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,237,846.40 : 1,210,856,769.60 = 438,949,233.40 : x
  2. Step 2: Convert to fraction form
    807,237,846.40/1,210,856,769.60 = 438,949,233.40/x
  3. Step 3: Cross multiply
    807,237,846.40x = 1,210,856,769.60 × 438,949,233.40
  4. Step 4: Simplify right side
    807,237,846.40x = 531,504,650,773,120,384
  5. Step 5: Solve for x
    x = 531,504,650,773,120,384/807,237,846.40
  6. Step 6: Final answer
    x = 658,423,850.10

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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.