Home / 5,160,207.79-7,120,665.58-3,038,157.78

Finding the Fourth Proportional to 5,160,207.79, 7,120,665.58 and 3,038,157.78

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Solution

The fourth proportional to 5,160,207.79, 7,120,665.58 and 3,038,157.78 is: 4,192,409.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160,207.79 : 7,120,665.58 = 3,038,157.78 : x
  2. Step 2: Convert to fraction form
    5,160,207.79/7,120,665.58 = 3,038,157.78/x
  3. Step 3: Cross multiply
    5,160,207.79x = 7,120,665.58 × 3,038,157.78
  4. Step 4: Simplify right side
    5,160,207.79x = 21,633,705,534,452.91
  5. Step 5: Solve for x
    x = 21,633,705,534,452.91/5,160,207.79
  6. Step 6: Final answer
    x = 4,192,409.77

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1.5x scale

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.