Home / 18,889,655-28,334,482.56-10,423,799.84

Finding the Fourth Proportional to 18,889,655, 28,334,482.56 and 10,423,799.84

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Solution

The fourth proportional to 18,889,655, 28,334,482.56 and 10,423,799.84 is: 15,635,699.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889,655 : 28,334,482.56 = 10,423,799.84 : x
  2. Step 2: Convert to fraction form
    18,889,655/28,334,482.56 = 10,423,799.84/x
  3. Step 3: Cross multiply
    18,889,655x = 28,334,482.56 × 10,423,799.84
  4. Step 4: Simplify right side
    18,889,655x = 295,352,974,775,410.75
  5. Step 5: Solve for x
    x = 295,352,974,775,410.75/18,889,655
  6. Step 6: Final answer
    x = 15,635,699.79

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Double scale
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Similar ratio
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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.