Home / 12,919,891.40-19,379,837.10-10,400,467.40

Finding the Fourth Proportional to 12,919,891.40, 19,379,837.10 and 10,400,467.40

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Solution

The fourth proportional to 12,919,891.40, 19,379,837.10 and 10,400,467.40 is: 15,600,701.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,891.40 : 19,379,837.10 = 10,400,467.40 : x
  2. Step 2: Convert to fraction form
    12,919,891.40/19,379,837.10 = 10,400,467.40/x
  3. Step 3: Cross multiply
    12,919,891.40x = 19,379,837.10 × 10,400,467.40
  4. Step 4: Simplify right side
    12,919,891.40x = 201,559,363,975,860.56
  5. Step 5: Solve for x
    x = 201,559,363,975,860.56/12,919,891.40
  6. Step 6: Final answer
    x = 15,600,701.10

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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.