Home / 6,912,340.80-10,368,511.20-6,613,742.40

Finding the Fourth Proportional to 6,912,340.80, 10,368,511.20 and 6,613,742.40

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Solution

The fourth proportional to 6,912,340.80, 10,368,511.20 and 6,613,742.40 is: 9,920,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912,340.80 : 10,368,511.20 = 6,613,742.40 : x
  2. Step 2: Convert to fraction form
    6,912,340.80/10,368,511.20 = 6,613,742.40/x
  3. Step 3: Cross multiply
    6,912,340.80x = 10,368,511.20 × 6,613,742.40
  4. Step 4: Simplify right side
    6,912,340.80x = 68,574,662,148,314.88
  5. Step 5: Solve for x
    x = 68,574,662,148,314.88/6,912,340.80
  6. Step 6: Final answer
    x = 9,920,613.60

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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.