Home / 828,144,664.20-1,242,216,996.30-245,968,763.40

Finding the Fourth Proportional to 828,144,664.20, 1,242,216,996.30 and 245,968,763.40

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Solution

The fourth proportional to 828,144,664.20, 1,242,216,996.30 and 245,968,763.40 is: 368,953,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,144,664.20 : 1,242,216,996.30 = 245,968,763.40 : x
  2. Step 2: Convert to fraction form
    828,144,664.20/1,242,216,996.30 = 245,968,763.40/x
  3. Step 3: Cross multiply
    828,144,664.20x = 1,242,216,996.30 × 245,968,763.40
  4. Step 4: Simplify right side
    828,144,664.20x = 305,546,578,454,373,376
  5. Step 5: Solve for x
    x = 305,546,578,454,373,376/828,144,664.20
  6. Step 6: Final answer
    x = 368,953,145.10

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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.