Home / 12,989,125.20-19,479,095.10-4,467,479.70

Finding the Fourth Proportional to 12,989,125.20, 19,479,095.10 and 4,467,479.70

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Solution

The fourth proportional to 12,989,125.20, 19,479,095.10 and 4,467,479.70 is: 6,699,639.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989,125.20 : 19,479,095.10 = 4,467,479.70 : x
  2. Step 2: Convert to fraction form
    12,989,125.20/19,479,095.10 = 4,467,479.70/x
  3. Step 3: Cross multiply
    12,989,125.20x = 19,479,095.10 × 4,467,479.70
  4. Step 4: Simplify right side
    12,989,125.20x = 87,022,461,933,619.48
  5. Step 5: Solve for x
    x = 87,022,461,933,619.48/12,989,125.20
  6. Step 6: Final answer
    x = 6,699,639.94

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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.