Home / 787,399,854.79-1,086,644,813.88-452,872,470.46

Finding the Fourth Proportional to 787,399,854.79, 1,086,644,813.88 and 452,872,470.46

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Solution

The fourth proportional to 787,399,854.79, 1,086,644,813.88 and 452,872,470.46 is: 624,982,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,399,854.79 : 1,086,644,813.88 = 452,872,470.46 : x
  2. Step 2: Convert to fraction form
    787,399,854.79/1,086,644,813.88 = 452,872,470.46/x
  3. Step 3: Cross multiply
    787,399,854.79x = 1,086,644,813.88 × 452,872,470.46
  4. Step 4: Simplify right side
    787,399,854.79x = 492,111,521,374,382,528
  5. Step 5: Solve for x
    x = 492,111,521,374,382,528/787,399,854.79
  6. Step 6: Final answer
    x = 624,982,997.37

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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.