Home / 1,218,232,138.41-1,827,419,066.42-344,760,434.73

Finding the Fourth Proportional to 1,218,232,138.41, 1,827,419,066.42 and 344,760,434.73

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Solution

The fourth proportional to 1,218,232,138.41, 1,827,419,066.42 and 344,760,434.73 is: 517,160,705.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,232,138.41 : 1,827,419,066.42 = 344,760,434.73 : x
  2. Step 2: Convert to fraction form
    1,218,232,138.41/1,827,419,066.42 = 344,760,434.73/x
  3. Step 3: Cross multiply
    1,218,232,138.41x = 1,827,419,066.42 × 344,760,434.73
  4. Step 4: Simplify right side
    1,218,232,138.41x = 630,021,791,771,126,144
  5. Step 5: Solve for x
    x = 630,021,791,771,126,144/1,218,232,138.41
  6. Step 6: Final answer
    x = 517,160,705.18

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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.