Home / 14,119,191.28-19,478,012.52-8,315,194.64

Finding the Fourth Proportional to 14,119,191.28, 19,478,012.52 and 8,315,194.64

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Solution

The fourth proportional to 14,119,191.28, 19,478,012.52 and 8,315,194.64 is: 11,471,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119,191.28 : 19,478,012.52 = 8,315,194.64 : x
  2. Step 2: Convert to fraction form
    14,119,191.28/19,478,012.52 = 8,315,194.64/x
  3. Step 3: Cross multiply
    14,119,191.28x = 19,478,012.52 × 8,315,194.64
  4. Step 4: Simplify right side
    14,119,191.28x = 161,963,465,304,156.88
  5. Step 5: Solve for x
    x = 161,963,465,304,156.88/14,119,191.28
  6. Step 6: Final answer
    x = 11,471,157.38

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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.