Home / 431,043,364.20-646,565,046.30-189,178,660.20

Finding the Fourth Proportional to 431,043,364.20, 646,565,046.30 and 189,178,660.20

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Solution

The fourth proportional to 431,043,364.20, 646,565,046.30 and 189,178,660.20 is: 283,767,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,043,364.20 : 646,565,046.30 = 189,178,660.20 : x
  2. Step 2: Convert to fraction form
    431,043,364.20/646,565,046.30 = 189,178,660.20/x
  3. Step 3: Cross multiply
    431,043,364.20x = 646,565,046.30 × 189,178,660.20
  4. Step 4: Simplify right side
    431,043,364.20x = 122,316,309,191,184,944
  5. Step 5: Solve for x
    x = 122,316,309,191,184,944/431,043,364.20
  6. Step 6: Final answer
    x = 283,767,990.30

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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.