Home / 1,192,271,335.80-1,645,334,519.28-663,623,941.56

Finding the Fourth Proportional to 1,192,271,335.80, 1,645,334,519.28 and 663,623,941.56

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Solution

The fourth proportional to 1,192,271,335.80, 1,645,334,519.28 and 663,623,941.56 is: 915,801,081.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,271,335.80 : 1,645,334,519.28 = 663,623,941.56 : x
  2. Step 2: Convert to fraction form
    1,192,271,335.80/1,645,334,519.28 = 663,623,941.56/x
  3. Step 3: Cross multiply
    1,192,271,335.80x = 1,645,334,519.28 × 663,623,941.56
  4. Step 4: Simplify right side
    1,192,271,335.80x = 1,091,883,378,869,321,344
  5. Step 5: Solve for x
    x = 1,091,883,378,869,321,344/1,192,271,335.80
  6. Step 6: Final answer
    x = 915,801,081.59

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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.