Home / 20,783,766.80-31,091,669.40-17,975,075.60

Finding the Fourth Proportional to 20,783,766.80, 31,091,669.40 and 17,975,075.60

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Solution

The fourth proportional to 20,783,766.80, 31,091,669.40 and 17,975,075.60 is: 26,889,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,766.80 : 31,091,669.40 = 17,975,075.60 : x
  2. Step 2: Convert to fraction form
    20,783,766.80/31,091,669.40 = 17,975,075.60/x
  3. Step 3: Cross multiply
    20,783,766.80x = 31,091,669.40 × 17,975,075.60
  4. Step 4: Simplify right side
    20,783,766.80x = 558,875,107,995,206.69
  5. Step 5: Solve for x
    x = 558,875,107,995,206.69/20,783,766.80
  6. Step 6: Final answer
    x = 26,889,981.66

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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.