Home / 642,083,455.11-886,079,703.02-348,728,023.11

Finding the Fourth Proportional to 642,083,455.11, 886,079,703.02 and 348,728,023.11

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Solution

The fourth proportional to 642,083,455.11, 886,079,703.02 and 348,728,023.11 is: 481,247,134.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,083,455.11 : 886,079,703.02 = 348,728,023.11 : x
  2. Step 2: Convert to fraction form
    642,083,455.11/886,079,703.02 = 348,728,023.11/x
  3. Step 3: Cross multiply
    642,083,455.11x = 886,079,703.02 × 348,728,023.11
  4. Step 4: Simplify right side
    642,083,455.11x = 309,000,823,150,316,864
  5. Step 5: Solve for x
    x = 309,000,823,150,316,864/642,083,455.11
  6. Step 6: Final answer
    x = 481,247,134.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.