Home / 21,329,077.60-31,993,616.40-9,361,813.60

Finding the Fourth Proportional to 21,329,077.60, 31,993,616.40 and 9,361,813.60

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Solution

The fourth proportional to 21,329,077.60, 31,993,616.40 and 9,361,813.60 is: 14,042,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329,077.60 : 31,993,616.40 = 9,361,813.60 : x
  2. Step 2: Convert to fraction form
    21,329,077.60/31,993,616.40 = 9,361,813.60/x
  3. Step 3: Cross multiply
    21,329,077.60x = 31,993,616.40 × 9,361,813.60
  4. Step 4: Simplify right side
    21,329,077.60x = 299,518,273,126,703
  5. Step 5: Solve for x
    x = 299,518,273,126,703/21,329,077.60
  6. Step 6: Final answer
    x = 14,042,720.40

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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.