Home / 820,925,258.52-1,231,387,886.57-207,509,484.27

Finding the Fourth Proportional to 820,925,258.52, 1,231,387,886.57 and 207,509,484.27

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Solution

The fourth proportional to 820,925,258.52, 1,231,387,886.57 and 207,509,484.27 is: 311,264,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,925,258.52 : 1,231,387,886.57 = 207,509,484.27 : x
  2. Step 2: Convert to fraction form
    820,925,258.52/1,231,387,886.57 = 207,509,484.27/x
  3. Step 3: Cross multiply
    820,925,258.52x = 1,231,387,886.57 × 207,509,484.27
  4. Step 4: Simplify right side
    820,925,258.52x = 255,524,665,278,465,952
  5. Step 5: Solve for x
    x = 255,524,665,278,465,952/820,925,258.52
  6. Step 6: Final answer
    x = 311,264,226.10

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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.