Home / 315,217,343.20-472,826,014.80-194,284,991.20

Finding the Fourth Proportional to 315,217,343.20, 472,826,014.80 and 194,284,991.20

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Solution

The fourth proportional to 315,217,343.20, 472,826,014.80 and 194,284,991.20 is: 291,427,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,217,343.20 : 472,826,014.80 = 194,284,991.20 : x
  2. Step 2: Convert to fraction form
    315,217,343.20/472,826,014.80 = 194,284,991.20/x
  3. Step 3: Cross multiply
    315,217,343.20x = 472,826,014.80 × 194,284,991.20
  4. Step 4: Simplify right side
    315,217,343.20x = 91,862,998,124,549,072
  5. Step 5: Solve for x
    x = 91,862,998,124,549,072/315,217,343.20
  6. Step 6: Final answer
    x = 291,427,486.80

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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.