Home / 217,847,999.20-326,771,998.80-194,039,442.40

Finding the Fourth Proportional to 217,847,999.20, 326,771,998.80 and 194,039,442.40

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Solution

The fourth proportional to 217,847,999.20, 326,771,998.80 and 194,039,442.40 is: 291,059,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,847,999.20 : 326,771,998.80 = 194,039,442.40 : x
  2. Step 2: Convert to fraction form
    217,847,999.20/326,771,998.80 = 194,039,442.40/x
  3. Step 3: Cross multiply
    217,847,999.20x = 326,771,998.80 × 194,039,442.40
  4. Step 4: Simplify right side
    217,847,999.20x = 63,406,656,439,085,472
  5. Step 5: Solve for x
    x = 63,406,656,439,085,472/217,847,999.20
  6. Step 6: Final answer
    x = 291,059,163.60

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1.5x scale

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.