Home / 354,231,888.48-489,016,984.88-220,312,970.60

Finding the Fourth Proportional to 354,231,888.48, 489,016,984.88 and 220,312,970.60

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Solution

The fourth proportional to 354,231,888.48, 489,016,984.88 and 220,312,970.60 is: 304,141,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,231,888.48 : 489,016,984.88 = 220,312,970.60 : x
  2. Step 2: Convert to fraction form
    354,231,888.48/489,016,984.88 = 220,312,970.60/x
  3. Step 3: Cross multiply
    354,231,888.48x = 489,016,984.88 × 220,312,970.60
  4. Step 4: Simplify right side
    354,231,888.48x = 107,736,784,614,541,408
  5. Step 5: Solve for x
    x = 107,736,784,614,541,408/354,231,888.48
  6. Step 6: Final answer
    x = 304,141,970.61

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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.