Home / 20,670,185.80-31,005,278.70-6,293,139.40

Finding the Fourth Proportional to 20,670,185.80, 31,005,278.70 and 6,293,139.40

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Solution

The fourth proportional to 20,670,185.80, 31,005,278.70 and 6,293,139.40 is: 9,439,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670,185.80 : 31,005,278.70 = 6,293,139.40 : x
  2. Step 2: Convert to fraction form
    20,670,185.80/31,005,278.70 = 6,293,139.40/x
  3. Step 3: Cross multiply
    20,670,185.80x = 31,005,278.70 × 6,293,139.40
  4. Step 4: Simplify right side
    20,670,185.80x = 195,120,540,994,950.78
  5. Step 5: Solve for x
    x = 195,120,540,994,950.78/20,670,185.80
  6. Step 6: Final answer
    x = 9,439,709.10

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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.