Home / 12,487,399.60-18,731,099.40-8,008,423.60

Finding the Fourth Proportional to 12,487,399.60, 18,731,099.40 and 8,008,423.60

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Solution

The fourth proportional to 12,487,399.60, 18,731,099.40 and 8,008,423.60 is: 12,012,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487,399.60 : 18,731,099.40 = 8,008,423.60 : x
  2. Step 2: Convert to fraction form
    12,487,399.60/18,731,099.40 = 8,008,423.60/x
  3. Step 3: Cross multiply
    12,487,399.60x = 18,731,099.40 × 8,008,423.60
  4. Step 4: Simplify right side
    12,487,399.60x = 150,006,578,488,905.81
  5. Step 5: Solve for x
    x = 150,006,578,488,905.81/12,487,399.60
  6. Step 6: Final answer
    x = 12,012,635.40

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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.