Home / 21,329,143.60-31,993,715.40-9,361,879.60

Finding the Fourth Proportional to 21,329,143.60, 31,993,715.40 and 9,361,879.60

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Solution

The fourth proportional to 21,329,143.60, 31,993,715.40 and 9,361,879.60 is: 14,042,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329,143.60 : 31,993,715.40 = 9,361,879.60 : x
  2. Step 2: Convert to fraction form
    21,329,143.60/31,993,715.40 = 9,361,879.60/x
  3. Step 3: Cross multiply
    21,329,143.60x = 31,993,715.40 × 9,361,879.60
  4. Step 4: Simplify right side
    21,329,143.60x = 299,521,311,531,465.81
  5. Step 5: Solve for x
    x = 299,521,311,531,465.81/21,329,143.60
  6. Step 6: Final answer
    x = 14,042,819.40

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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.