Home / 565,911,898.68-780,950,420.82-318,392,662.44

Finding the Fourth Proportional to 565,911,898.68, 780,950,420.82 and 318,392,662.44

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Solution

The fourth proportional to 565,911,898.68, 780,950,420.82 and 318,392,662.44 is: 439,377,373.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,911,898.68 : 780,950,420.82 = 318,392,662.44 : x
  2. Step 2: Convert to fraction form
    565,911,898.68/780,950,420.82 = 318,392,662.44/x
  3. Step 3: Cross multiply
    565,911,898.68x = 780,950,420.82 × 318,392,662.44
  4. Step 4: Simplify right side
    565,911,898.68x = 248,648,883,718,518,208
  5. Step 5: Solve for x
    x = 248,648,883,718,518,208/565,911,898.68
  6. Step 6: Final answer
    x = 439,377,373.58

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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.