Home / 354,347,866.48-489,001,407.60-197,721,574.96

Finding the Fourth Proportional to 354,347,866.48, 489,001,407.60 and 197,721,574.96

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Solution

The fourth proportional to 354,347,866.48, 489,001,407.60 and 197,721,574.96 is: 272,856,527.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,347,866.48 : 489,001,407.60 = 197,721,574.96 : x
  2. Step 2: Convert to fraction form
    354,347,866.48/489,001,407.60 = 197,721,574.96/x
  3. Step 3: Cross multiply
    354,347,866.48x = 489,001,407.60 × 197,721,574.96
  4. Step 4: Simplify right side
    354,347,866.48x = 96,686,128,468,328,928
  5. Step 5: Solve for x
    x = 96,686,128,468,328,928/354,347,866.48
  6. Step 6: Final answer
    x = 272,856,527.76

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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.