Home / 13,558,543.86-18,711,155.94-7,977,179.98

Finding the Fourth Proportional to 13,558,543.86, 18,711,155.94 and 7,977,179.98

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Solution

The fourth proportional to 13,558,543.86, 18,711,155.94 and 7,977,179.98 is: 11,008,723.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558,543.86 : 18,711,155.94 = 7,977,179.98 : x
  2. Step 2: Convert to fraction form
    13,558,543.86/18,711,155.94 = 7,977,179.98/x
  3. Step 3: Cross multiply
    13,558,543.86x = 18,711,155.94 × 7,977,179.98
  4. Step 4: Simplify right side
    13,558,543.86x = 149,262,258,567,226.09
  5. Step 5: Solve for x
    x = 149,262,258,567,226.09/13,558,543.86
  6. Step 6: Final answer
    x = 11,008,723.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.