Home / 491,968,717.27-678,924,895.76-293,747,533.77

Finding the Fourth Proportional to 491,968,717.27, 678,924,895.76 and 293,747,533.77

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Solution

The fourth proportional to 491,968,717.27, 678,924,895.76 and 293,747,533.77 is: 405,376,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,968,717.27 : 678,924,895.76 = 293,747,533.77 : x
  2. Step 2: Convert to fraction form
    491,968,717.27/678,924,895.76 = 293,747,533.77/x
  3. Step 3: Cross multiply
    491,968,717.27x = 678,924,895.76 × 293,747,533.77
  4. Step 4: Simplify right side
    491,968,717.27x = 199,432,513,741,641,184
  5. Step 5: Solve for x
    x = 199,432,513,741,641,184/491,968,717.27
  6. Step 6: Final answer
    x = 405,376,412.65

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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.