Home / 842,770,804.86-1,163,015,143.97-466,428,123.32

Finding the Fourth Proportional to 842,770,804.86, 1,163,015,143.97 and 466,428,123.32

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Solution

The fourth proportional to 842,770,804.86, 1,163,015,143.97 and 466,428,123.32 is: 643,666,068.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,770,804.86 : 1,163,015,143.97 = 466,428,123.32 : x
  2. Step 2: Convert to fraction form
    842,770,804.86/1,163,015,143.97 = 466,428,123.32/x
  3. Step 3: Cross multiply
    842,770,804.86x = 1,163,015,143.97 × 466,428,123.32
  4. Step 4: Simplify right side
    842,770,804.86x = 542,462,970,986,519,424
  5. Step 5: Solve for x
    x = 542,462,970,986,519,424/842,770,804.86
  6. Step 6: Final answer
    x = 643,666,068.95

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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.