Home / 820,423,318.73-1,230,638,133.51-198,637,514.80

Finding the Fourth Proportional to 820,423,318.73, 1,230,638,133.51 and 198,637,514.80

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Solution

The fourth proportional to 820,423,318.73, 1,230,638,133.51 and 198,637,514.80 is: 297,957,036.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,423,318.73 : 1,230,638,133.51 = 198,637,514.80 : x
  2. Step 2: Convert to fraction form
    820,423,318.73/1,230,638,133.51 = 198,637,514.80/x
  3. Step 3: Cross multiply
    820,423,318.73x = 1,230,638,133.51 × 198,637,514.80
  4. Step 4: Simplify right side
    820,423,318.73x = 244,450,900,455,957,024
  5. Step 5: Solve for x
    x = 244,450,900,455,957,024/820,423,318.73
  6. Step 6: Final answer
    x = 297,957,036.17

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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.