Home / 326,621,896.40-489,932,844.60-163,363,221.20

Finding the Fourth Proportional to 326,621,896.40, 489,932,844.60 and 163,363,221.20

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Solution

The fourth proportional to 326,621,896.40, 489,932,844.60 and 163,363,221.20 is: 245,044,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,621,896.40 : 489,932,844.60 = 163,363,221.20 : x
  2. Step 2: Convert to fraction form
    326,621,896.40/489,932,844.60 = 163,363,221.20/x
  3. Step 3: Cross multiply
    326,621,896.40x = 489,932,844.60 × 163,363,221.20
  4. Step 4: Simplify right side
    326,621,896.40x = 80,037,007,665,535,024
  5. Step 5: Solve for x
    x = 80,037,007,665,535,024/326,621,896.40
  6. Step 6: Final answer
    x = 245,044,831.80

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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.