Home / 1,192,271,305.80-1,645,334,477.82-663,623,911.56

Finding the Fourth Proportional to 1,192,271,305.80, 1,645,334,477.82 and 663,623,911.56

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Solution

The fourth proportional to 1,192,271,305.80, 1,645,334,477.82 and 663,623,911.56 is: 915,801,040.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,271,305.80 : 1,645,334,477.82 = 663,623,911.56 : x
  2. Step 2: Convert to fraction form
    1,192,271,305.80/1,645,334,477.82 = 663,623,911.56/x
  3. Step 3: Cross multiply
    1,192,271,305.80x = 1,645,334,477.82 × 663,623,911.56
  4. Step 4: Simplify right side
    1,192,271,305.80x = 1,091,883,301,995,438,336
  5. Step 5: Solve for x
    x = 1,091,883,301,995,438,336/1,192,271,305.80
  6. Step 6: Final answer
    x = 915,801,040.15

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Double scale
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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.