Home / 8,007,738.60-12,011,607.90-6,661,421.40

Finding the Fourth Proportional to 8,007,738.60, 12,011,607.90 and 6,661,421.40

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Solution

The fourth proportional to 8,007,738.60, 12,011,607.90 and 6,661,421.40 is: 9,992,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,007,738.60 : 12,011,607.90 = 6,661,421.40 : x
  2. Step 2: Convert to fraction form
    8,007,738.60/12,011,607.90 = 6,661,421.40/x
  3. Step 3: Cross multiply
    8,007,738.60x = 12,011,607.90 × 6,661,421.40
  4. Step 4: Simplify right side
    8,007,738.60x = 80,014,381,913,469.06
  5. Step 5: Solve for x
    x = 80,014,381,913,469.06/8,007,738.60
  6. Step 6: Final answer
    x = 9,992,132.10

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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.