Home / 8,241,712.40-12,362,568.60-7,821,808.40

Finding the Fourth Proportional to 8,241,712.40, 12,362,568.60 and 7,821,808.40

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Solution

The fourth proportional to 8,241,712.40, 12,362,568.60 and 7,821,808.40 is: 11,732,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241,712.40 : 12,362,568.60 = 7,821,808.40 : x
  2. Step 2: Convert to fraction form
    8,241,712.40/12,362,568.60 = 7,821,808.40/x
  3. Step 3: Cross multiply
    8,241,712.40x = 12,362,568.60 × 7,821,808.40
  4. Step 4: Simplify right side
    8,241,712.40x = 96,697,642,921,056.23
  5. Step 5: Solve for x
    x = 96,697,642,921,056.23/8,241,712.40
  6. Step 6: Final answer
    x = 11,732,712.60

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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.