Home / 28,270,952.20-42,406,428.30-19,313,000.20

Finding the Fourth Proportional to 28,270,952.20, 42,406,428.30 and 19,313,000.20

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Solution

The fourth proportional to 28,270,952.20, 42,406,428.30 and 19,313,000.20 is: 28,969,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,270,952.20 : 42,406,428.30 = 19,313,000.20 : x
  2. Step 2: Convert to fraction form
    28,270,952.20/42,406,428.30 = 19,313,000.20/x
  3. Step 3: Cross multiply
    28,270,952.20x = 42,406,428.30 × 19,313,000.20
  4. Step 4: Simplify right side
    28,270,952.20x = 818,995,358,239,185.62
  5. Step 5: Solve for x
    x = 818,995,358,239,185.62/28,270,952.20
  6. Step 6: Final answer
    x = 28,969,500.30

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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.