Home / 12,478,508.40-18,717,762.60-8,825,343.60

Finding the Fourth Proportional to 12,478,508.40, 18,717,762.60 and 8,825,343.60

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Solution

The fourth proportional to 12,478,508.40, 18,717,762.60 and 8,825,343.60 is: 13,238,015.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,508.40 : 18,717,762.60 = 8,825,343.60 : x
  2. Step 2: Convert to fraction form
    12,478,508.40/18,717,762.60 = 8,825,343.60/x
  3. Step 3: Cross multiply
    12,478,508.40x = 18,717,762.60 × 8,825,343.60
  4. Step 4: Simplify right side
    12,478,508.40x = 165,190,686,368,229.38
  5. Step 5: Solve for x
    x = 165,190,686,368,229.38/12,478,508.40
  6. Step 6: Final answer
    x = 13,238,015.40

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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.