Home / 20,943,960.90-31,391,058.15-8,813,400.90

Finding the Fourth Proportional to 20,943,960.90, 31,391,058.15 and 8,813,400.90

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Solution

The fourth proportional to 20,943,960.90, 31,391,058.15 and 8,813,400.90 is: 13,209,630.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943,960.90 : 31,391,058.15 = 8,813,400.90 : x
  2. Step 2: Convert to fraction form
    20,943,960.90/31,391,058.15 = 8,813,400.90/x
  3. Step 3: Cross multiply
    20,943,960.90x = 31,391,058.15 × 8,813,400.90
  4. Step 4: Simplify right side
    20,943,960.90x = 276,661,980,151,162.34
  5. Step 5: Solve for x
    x = 276,661,980,151,162.34/20,943,960.90
  6. Step 6: Final answer
    x = 13,209,630.28

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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.