Home / 828,144,003.20-1,242,216,004.80-245,968,102.40

Finding the Fourth Proportional to 828,144,003.20, 1,242,216,004.80 and 245,968,102.40

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Solution

The fourth proportional to 828,144,003.20, 1,242,216,004.80 and 245,968,102.40 is: 368,952,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,144,003.20 : 1,242,216,004.80 = 245,968,102.40 : x
  2. Step 2: Convert to fraction form
    828,144,003.20/1,242,216,004.80 = 245,968,102.40/x
  3. Step 3: Cross multiply
    828,144,003.20x = 1,242,216,004.80 × 245,968,102.40
  4. Step 4: Simplify right side
    828,144,003.20x = 305,545,513,471,565,312
  5. Step 5: Solve for x
    x = 305,545,513,471,565,312/828,144,003.20
  6. Step 6: Final answer
    x = 368,952,153.60

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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.