Home / 828,144,400.20-1,242,216,600.30-245,968,499.40

Finding the Fourth Proportional to 828,144,400.20, 1,242,216,600.30 and 245,968,499.40

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Solution

The fourth proportional to 828,144,400.20, 1,242,216,600.30 and 245,968,499.40 is: 368,952,749.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,144,400.20 : 1,242,216,600.30 = 245,968,499.40 : x
  2. Step 2: Convert to fraction form
    828,144,400.20/1,242,216,600.30 = 245,968,499.40/x
  3. Step 3: Cross multiply
    828,144,400.20x = 1,242,216,600.30 × 245,968,499.40
  4. Step 4: Simplify right side
    828,144,400.20x = 305,546,153,105,560,576
  5. Step 5: Solve for x
    x = 305,546,153,105,560,576/828,144,400.20
  6. Step 6: Final answer
    x = 368,952,749.10

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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.