Home / 11,028,953.60-16,543,430.40-8,478,036.80

Finding the Fourth Proportional to 11,028,953.60, 16,543,430.40 and 8,478,036.80

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Solution

The fourth proportional to 11,028,953.60, 16,543,430.40 and 8,478,036.80 is: 12,717,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028,953.60 : 16,543,430.40 = 8,478,036.80 : x
  2. Step 2: Convert to fraction form
    11,028,953.60/16,543,430.40 = 8,478,036.80/x
  3. Step 3: Cross multiply
    11,028,953.60x = 16,543,430.40 × 8,478,036.80
  4. Step 4: Simplify right side
    11,028,953.60x = 140,255,811,729,438.73
  5. Step 5: Solve for x
    x = 140,255,811,729,438.73/11,028,953.60
  6. Step 6: Final answer
    x = 12,717,055.20

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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.