Home / 20,670,191.80-31,005,287.70-6,293,145.40

Finding the Fourth Proportional to 20,670,191.80, 31,005,287.70 and 6,293,145.40

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Solution

The fourth proportional to 20,670,191.80, 31,005,287.70 and 6,293,145.40 is: 9,439,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670,191.80 : 31,005,287.70 = 6,293,145.40 : x
  2. Step 2: Convert to fraction form
    20,670,191.80/31,005,287.70 = 6,293,145.40/x
  3. Step 3: Cross multiply
    20,670,191.80x = 31,005,287.70 × 6,293,145.40
  4. Step 4: Simplify right side
    20,670,191.80x = 195,120,783,664,931.59
  5. Step 5: Solve for x
    x = 195,120,783,664,931.59/20,670,191.80
  6. Step 6: Final answer
    x = 9,439,718.10

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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.