Home / 843,078,688.21-1,163,570,286.77-485,778,033.41

Finding the Fourth Proportional to 843,078,688.21, 1,163,570,286.77 and 485,778,033.41

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Solution

The fourth proportional to 843,078,688.21, 1,163,570,286.77 and 485,778,033.41 is: 670,443,807.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,078,688.21 : 1,163,570,286.77 = 485,778,033.41 : x
  2. Step 2: Convert to fraction form
    843,078,688.21/1,163,570,286.77 = 485,778,033.41/x
  3. Step 3: Cross multiply
    843,078,688.21x = 1,163,570,286.77 × 485,778,033.41
  4. Step 4: Simplify right side
    843,078,688.21x = 565,236,885,641,440,384
  5. Step 5: Solve for x
    x = 565,236,885,641,440,384/843,078,688.21
  6. Step 6: Final answer
    x = 670,443,807.38

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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.