Home / 8,690,667.20-13,036,000.80-5,326,769.60

Finding the Fourth Proportional to 8,690,667.20, 13,036,000.80 and 5,326,769.60

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Solution

The fourth proportional to 8,690,667.20, 13,036,000.80 and 5,326,769.60 is: 7,990,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690,667.20 : 13,036,000.80 = 5,326,769.60 : x
  2. Step 2: Convert to fraction form
    8,690,667.20/13,036,000.80 = 5,326,769.60/x
  3. Step 3: Cross multiply
    8,690,667.20x = 13,036,000.80 × 5,326,769.60
  4. Step 4: Simplify right side
    8,690,667.20x = 69,439,772,767,015.68
  5. Step 5: Solve for x
    x = 69,439,772,767,015.68/8,690,667.20
  6. Step 6: Final answer
    x = 7,990,154.40

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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.