Home / 18,686,305.50-25,787,172.88-10,426,715.90

Finding the Fourth Proportional to 18,686,305.50, 25,787,172.88 and 10,426,715.90

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Solution

The fourth proportional to 18,686,305.50, 25,787,172.88 and 10,426,715.90 is: 14,388,907.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,305.50 : 25,787,172.88 = 10,426,715.90 : x
  2. Step 2: Convert to fraction form
    18,686,305.50/25,787,172.88 = 10,426,715.90/x
  3. Step 3: Cross multiply
    18,686,305.50x = 25,787,172.88 × 10,426,715.90
  4. Step 4: Simplify right side
    18,686,305.50x = 268,875,525,574,479.50
  5. Step 5: Solve for x
    x = 268,875,525,574,479.50/18,686,305.50
  6. Step 6: Final answer
    x = 14,388,907.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.