Home / 42,148,942.92-63,232,439.06-12,607,453.51

Finding the Fourth Proportional to 42,148,942.92, 63,232,439.06 and 12,607,453.51

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Solution

The fourth proportional to 42,148,942.92, 63,232,439.06 and 12,607,453.51 is: 18,913,879.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,148,942.92 : 63,232,439.06 = 12,607,453.51 : x
  2. Step 2: Convert to fraction form
    42,148,942.92/63,232,439.06 = 12,607,453.51/x
  3. Step 3: Cross multiply
    42,148,942.92x = 63,232,439.06 × 12,607,453.51
  4. Step 4: Simplify right side
    42,148,942.92x = 797,200,035,646,295.62
  5. Step 5: Solve for x
    x = 797,200,035,646,295.62/42,148,942.92
  6. Step 6: Final answer
    x = 18,913,879.69

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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.