Home / 12,547,983.40-18,821,975.10-11,178,046.60

Finding the Fourth Proportional to 12,547,983.40, 18,821,975.10 and 11,178,046.60

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Solution

The fourth proportional to 12,547,983.40, 18,821,975.10 and 11,178,046.60 is: 16,767,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547,983.40 : 18,821,975.10 = 11,178,046.60 : x
  2. Step 2: Convert to fraction form
    12,547,983.40/18,821,975.10 = 11,178,046.60/x
  3. Step 3: Cross multiply
    12,547,983.40x = 18,821,975.10 × 11,178,046.60
  4. Step 4: Simplify right side
    12,547,983.40x = 210,392,914,771,839.66
  5. Step 5: Solve for x
    x = 210,392,914,771,839.66/12,547,983.40
  6. Step 6: Final answer
    x = 16,767,069.90

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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.