Home / 824,830,398.92-1,237,795,728.42-300,199,354.78

Finding the Fourth Proportional to 824,830,398.92, 1,237,795,728.42 and 300,199,354.78

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Solution

The fourth proportional to 824,830,398.92, 1,237,795,728.42 and 300,199,354.78 is: 450,499,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,830,398.92 : 1,237,795,728.42 = 300,199,354.78 : x
  2. Step 2: Convert to fraction form
    824,830,398.92/1,237,795,728.42 = 300,199,354.78/x
  3. Step 3: Cross multiply
    824,830,398.92x = 1,237,795,728.42 × 300,199,354.78
  4. Step 4: Simplify right side
    824,830,398.92x = 371,585,479,018,029,632
  5. Step 5: Solve for x
    x = 371,585,479,018,029,632/824,830,398.92
  6. Step 6: Final answer
    x = 450,499,253.55

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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.