Home / 12,474,208.80-18,697,316.40-7,085,440.80

Finding the Fourth Proportional to 12,474,208.80, 18,697,316.40 and 7,085,440.80

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Solution

The fourth proportional to 12,474,208.80, 18,697,316.40 and 7,085,440.80 is: 10,620,210.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474,208.80 : 18,697,316.40 = 7,085,440.80 : x
  2. Step 2: Convert to fraction form
    12,474,208.80/18,697,316.40 = 7,085,440.80/x
  3. Step 3: Cross multiply
    12,474,208.80x = 18,697,316.40 × 7,085,440.80
  4. Step 4: Simplify right side
    12,474,208.80x = 132,478,728,471,069.11
  5. Step 5: Solve for x
    x = 132,478,728,471,069.11/12,474,208.80
  6. Step 6: Final answer
    x = 10,620,210.92

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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.