Home / 809,512,226.10-1,117,127,245.59-438,234,257.34

Finding the Fourth Proportional to 809,512,226.10, 1,117,127,245.59 and 438,234,257.34

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Solution

The fourth proportional to 809,512,226.10, 1,117,127,245.59 and 438,234,257.34 is: 604,763,477.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,512,226.10 : 1,117,127,245.59 = 438,234,257.34 : x
  2. Step 2: Convert to fraction form
    809,512,226.10/1,117,127,245.59 = 438,234,257.34/x
  3. Step 3: Cross multiply
    809,512,226.10x = 1,117,127,245.59 × 438,234,257.34
  4. Step 4: Simplify right side
    809,512,226.10x = 489,563,428,825,413,376
  5. Step 5: Solve for x
    x = 489,563,428,825,413,376/809,512,226.10
  6. Step 6: Final answer
    x = 604,763,477.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.