Home / 8,586,426.40-12,879,639.60-6,206,970.40

Finding the Fourth Proportional to 8,586,426.40, 12,879,639.60 and 6,206,970.40

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Solution

The fourth proportional to 8,586,426.40, 12,879,639.60 and 6,206,970.40 is: 9,310,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586,426.40 : 12,879,639.60 = 6,206,970.40 : x
  2. Step 2: Convert to fraction form
    8,586,426.40/12,879,639.60 = 6,206,970.40/x
  3. Step 3: Cross multiply
    8,586,426.40x = 12,879,639.60 × 6,206,970.40
  4. Step 4: Simplify right side
    8,586,426.40x = 79,943,541,759,867.84
  5. Step 5: Solve for x
    x = 79,943,541,759,867.84/8,586,426.40
  6. Step 6: Final answer
    x = 9,310,455.60

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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.