Home / 20,736,116.80-31,104,175.20-11,666,190.40

Finding the Fourth Proportional to 20,736,116.80, 31,104,175.20 and 11,666,190.40

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Solution

The fourth proportional to 20,736,116.80, 31,104,175.20 and 11,666,190.40 is: 17,499,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,116.80 : 31,104,175.20 = 11,666,190.40 : x
  2. Step 2: Convert to fraction form
    20,736,116.80/31,104,175.20 = 11,666,190.40/x
  3. Step 3: Cross multiply
    20,736,116.80x = 31,104,175.20 × 11,666,190.40
  4. Step 4: Simplify right side
    20,736,116.80x = 362,867,230,118,158.06
  5. Step 5: Solve for x
    x = 362,867,230,118,158.06/20,736,116.80
  6. Step 6: Final answer
    x = 17,499,285.60

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1.5x scale

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.