Home / 479,397,264.72-661,379,982.40-278,419,925.40

Finding the Fourth Proportional to 479,397,264.72, 661,379,982.40 and 278,419,925.40

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Solution

The fourth proportional to 479,397,264.72, 661,379,982.40 and 278,419,925.40 is: 384,110,171.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,397,264.72 : 661,379,982.40 = 278,419,925.40 : x
  2. Step 2: Convert to fraction form
    479,397,264.72/661,379,982.40 = 278,419,925.40/x
  3. Step 3: Cross multiply
    479,397,264.72x = 661,379,982.40 × 278,419,925.40
  4. Step 4: Simplify right side
    479,397,264.72x = 184,141,365,360,861,280
  5. Step 5: Solve for x
    x = 184,141,365,360,861,280/479,397,264.72
  6. Step 6: Final answer
    x = 384,110,171.07

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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.