Home / 20,736,079.80-31,104,119.70-11,666,153.40

Finding the Fourth Proportional to 20,736,079.80, 31,104,119.70 and 11,666,153.40

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Solution

The fourth proportional to 20,736,079.80, 31,104,119.70 and 11,666,153.40 is: 17,499,230.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,079.80 : 31,104,119.70 = 11,666,153.40 : x
  2. Step 2: Convert to fraction form
    20,736,079.80/31,104,119.70 = 11,666,153.40/x
  3. Step 3: Cross multiply
    20,736,079.80x = 31,104,119.70 × 11,666,153.40
  4. Step 4: Simplify right side
    20,736,079.80x = 362,865,431,792,162
  5. Step 5: Solve for x
    x = 362,865,431,792,162/20,736,079.80
  6. Step 6: Final answer
    x = 17,499,230.10

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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.