Home / 438,909,331.43-605,108,947.86-348,682,191.59

Finding the Fourth Proportional to 438,909,331.43, 605,108,947.86 and 348,682,191.59

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Solution

The fourth proportional to 438,909,331.43, 605,108,947.86 and 348,682,191.59 is: 480,715,945.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,909,331.43 : 605,108,947.86 = 348,682,191.59 : x
  2. Step 2: Convert to fraction form
    438,909,331.43/605,108,947.86 = 348,682,191.59/x
  3. Step 3: Cross multiply
    438,909,331.43x = 605,108,947.86 × 348,682,191.59
  4. Step 4: Simplify right side
    438,909,331.43x = 210,990,714,092,056,608
  5. Step 5: Solve for x
    x = 210,990,714,092,056,608/438,909,331.43
  6. Step 6: Final answer
    x = 480,715,945.14

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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.