Home / 12,456,055.20-18,684,082.80-3,939,002.40

Finding the Fourth Proportional to 12,456,055.20, 18,684,082.80 and 3,939,002.40

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Solution

The fourth proportional to 12,456,055.20, 18,684,082.80 and 3,939,002.40 is: 5,908,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,055.20 : 18,684,082.80 = 3,939,002.40 : x
  2. Step 2: Convert to fraction form
    12,456,055.20/18,684,082.80 = 3,939,002.40/x
  3. Step 3: Cross multiply
    12,456,055.20x = 18,684,082.80 × 3,939,002.40
  4. Step 4: Simplify right side
    12,456,055.20x = 73,596,646,990,998.72
  5. Step 5: Solve for x
    x = 73,596,646,990,998.72/12,456,055.20
  6. Step 6: Final answer
    x = 5,908,503.60

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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.