Home / 12,945,673.40-19,423,175.70-12,479,113.40

Finding the Fourth Proportional to 12,945,673.40, 19,423,175.70 and 12,479,113.40

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Solution

The fourth proportional to 12,945,673.40, 19,423,175.70 and 12,479,113.40 is: 18,723,167.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945,673.40 : 19,423,175.70 = 12,479,113.40 : x
  2. Step 2: Convert to fraction form
    12,945,673.40/19,423,175.70 = 12,479,113.40/x
  3. Step 3: Cross multiply
    12,945,673.40x = 19,423,175.70 × 12,479,113.40
  4. Step 4: Simplify right side
    12,945,673.40x = 242,384,012,148,424.38
  5. Step 5: Solve for x
    x = 242,384,012,148,424.38/12,945,673.40
  6. Step 6: Final answer
    x = 18,723,167.55

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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.