Home / 8,300,544.90-12,450,817.35-6,620,928.90

Finding the Fourth Proportional to 8,300,544.90, 12,450,817.35 and 6,620,928.90

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Solution

The fourth proportional to 8,300,544.90, 12,450,817.35 and 6,620,928.90 is: 9,931,393.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,300,544.90 : 12,450,817.35 = 6,620,928.90 : x
  2. Step 2: Convert to fraction form
    8,300,544.90/12,450,817.35 = 6,620,928.90/x
  3. Step 3: Cross multiply
    8,300,544.90x = 12,450,817.35 × 6,620,928.90
  4. Step 4: Simplify right side
    8,300,544.90x = 82,435,976,421,236.42
  5. Step 5: Solve for x
    x = 82,435,976,421,236.42/8,300,544.90
  6. Step 6: Final answer
    x = 9,931,393.35

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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.