Home / 843,078,687.71-1,163,570,286.08-485,778,032.91

Finding the Fourth Proportional to 843,078,687.71, 1,163,570,286.08 and 485,778,032.91

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Solution

The fourth proportional to 843,078,687.71, 1,163,570,286.08 and 485,778,032.91 is: 670,443,806.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,078,687.71 : 1,163,570,286.08 = 485,778,032.91 : x
  2. Step 2: Convert to fraction form
    843,078,687.71/1,163,570,286.08 = 485,778,032.91/x
  3. Step 3: Cross multiply
    843,078,687.71x = 1,163,570,286.08 × 485,778,032.91
  4. Step 4: Simplify right side
    843,078,687.71x = 565,236,884,724,468,352
  5. Step 5: Solve for x
    x = 565,236,884,724,468,352/843,078,687.71
  6. Step 6: Final answer
    x = 670,443,806.69

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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.