Home / 7,578,679.90-11,368,019.85-2,187,506.20

Finding the Fourth Proportional to 7,578,679.90, 11,368,019.85 and 2,187,506.20

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Solution

The fourth proportional to 7,578,679.90, 11,368,019.85 and 2,187,506.20 is: 3,281,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578,679.90 : 11,368,019.85 = 2,187,506.20 : x
  2. Step 2: Convert to fraction form
    7,578,679.90/11,368,019.85 = 2,187,506.20/x
  3. Step 3: Cross multiply
    7,578,679.90x = 11,368,019.85 × 2,187,506.20
  4. Step 4: Simplify right side
    7,578,679.90x = 24,867,613,903,598.07
  5. Step 5: Solve for x
    x = 24,867,613,903,598.07/7,578,679.90
  6. Step 6: Final answer
    x = 3,281,259.30

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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.