Home / 12,492,011.90-18,738,017.85-10,366,247.90

Finding the Fourth Proportional to 12,492,011.90, 18,738,017.85 and 10,366,247.90

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Solution

The fourth proportional to 12,492,011.90, 18,738,017.85 and 10,366,247.90 is: 15,549,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492,011.90 : 18,738,017.85 = 10,366,247.90 : x
  2. Step 2: Convert to fraction form
    12,492,011.90/18,738,017.85 = 10,366,247.90/x
  3. Step 3: Cross multiply
    12,492,011.90x = 18,738,017.85 × 10,366,247.90
  4. Step 4: Simplify right side
    12,492,011.90x = 194,242,938,187,725.03
  5. Step 5: Solve for x
    x = 194,242,938,187,725.03/12,492,011.90
  6. Step 6: Final answer
    x = 15,549,371.85

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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.