Home / 981,330,724.70-1,472,008,908.56-326,281,750.92

Finding the Fourth Proportional to 981,330,724.70, 1,472,008,908.56 and 326,281,750.92

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Solution

The fourth proportional to 981,330,724.70, 1,472,008,908.56 and 326,281,750.92 is: 489,426,889.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,330,724.70 : 1,472,008,908.56 = 326,281,750.92 : x
  2. Step 2: Convert to fraction form
    981,330,724.70/1,472,008,908.56 = 326,281,750.92/x
  3. Step 3: Cross multiply
    981,330,724.70x = 1,472,008,908.56 × 326,281,750.92
  4. Step 4: Simplify right side
    981,330,724.70x = 480,289,644,054,795,008
  5. Step 5: Solve for x
    x = 480,289,644,054,795,008/981,330,724.70
  6. Step 6: Final answer
    x = 489,426,889.39

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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.