Home / 12,068,990.10-18,103,485.15-11,957,015.70

Finding the Fourth Proportional to 12,068,990.10, 18,103,485.15 and 11,957,015.70

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Solution

The fourth proportional to 12,068,990.10, 18,103,485.15 and 11,957,015.70 is: 17,935,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,068,990.10 : 18,103,485.15 = 11,957,015.70 : x
  2. Step 2: Convert to fraction form
    12,068,990.10/18,103,485.15 = 11,957,015.70/x
  3. Step 3: Cross multiply
    12,068,990.10x = 18,103,485.15 × 11,957,015.70
  4. Step 4: Simplify right side
    12,068,990.10x = 216,463,656,163,266.81
  5. Step 5: Solve for x
    x = 216,463,656,163,266.81/12,068,990.10
  6. Step 6: Final answer
    x = 17,935,523.55

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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.