Home / 315,216,019.20-472,824,028.80-194,283,667.20

Finding the Fourth Proportional to 315,216,019.20, 472,824,028.80 and 194,283,667.20

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Solution

The fourth proportional to 315,216,019.20, 472,824,028.80 and 194,283,667.20 is: 291,425,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,216,019.20 : 472,824,028.80 = 194,283,667.20 : x
  2. Step 2: Convert to fraction form
    315,216,019.20/472,824,028.80 = 194,283,667.20/x
  3. Step 3: Cross multiply
    315,216,019.20x = 472,824,028.80 × 194,283,667.20
  4. Step 4: Simplify right side
    315,216,019.20x = 91,861,986,255,542,416
  5. Step 5: Solve for x
    x = 91,861,986,255,542,416/315,216,019.20
  6. Step 6: Final answer
    x = 291,425,500.80

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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.