Home / 7,800,534.40-11,700,801.60-6,805,206.40

Finding the Fourth Proportional to 7,800,534.40, 11,700,801.60 and 6,805,206.40

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Solution

The fourth proportional to 7,800,534.40, 11,700,801.60 and 6,805,206.40 is: 10,207,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800,534.40 : 11,700,801.60 = 6,805,206.40 : x
  2. Step 2: Convert to fraction form
    7,800,534.40/11,700,801.60 = 6,805,206.40/x
  3. Step 3: Cross multiply
    7,800,534.40x = 11,700,801.60 × 6,805,206.40
  4. Step 4: Simplify right side
    7,800,534.40x = 79,626,369,933,450.23
  5. Step 5: Solve for x
    x = 79,626,369,933,450.23/7,800,534.40
  6. Step 6: Final answer
    x = 10,207,809.60

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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.