Home / 1,002,173,911.31-1,501,482,311.07-418,623,940.28

Finding the Fourth Proportional to 1,002,173,911.31, 1,501,482,311.07 and 418,623,940.28

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Solution

The fourth proportional to 1,002,173,911.31, 1,501,482,311.07 and 418,623,940.28 is: 627,192,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002,173,911.31 : 1,501,482,311.07 = 418,623,940.28 : x
  2. Step 2: Convert to fraction form
    1,002,173,911.31/1,501,482,311.07 = 418,623,940.28/x
  3. Step 3: Cross multiply
    1,002,173,911.31x = 1,501,482,311.07 × 418,623,940.28
  4. Step 4: Simplify right side
    1,002,173,911.31x = 628,556,441,320,844,032
  5. Step 5: Solve for x
    x = 628,556,441,320,844,032/1,002,173,911.31
  6. Step 6: Final answer
    x = 627,192,979.41

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Double scale
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1.5x scale

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.