Home / 28,361,443.86-42,539,541.38-7,891,473.78

Finding the Fourth Proportional to 28,361,443.86, 42,539,541.38 and 7,891,473.78

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Solution

The fourth proportional to 28,361,443.86, 42,539,541.38 and 7,891,473.78 is: 11,836,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361,443.86 : 42,539,541.38 = 7,891,473.78 : x
  2. Step 2: Convert to fraction form
    28,361,443.86/42,539,541.38 = 7,891,473.78/x
  3. Step 3: Cross multiply
    28,361,443.86x = 42,539,541.38 × 7,891,473.78
  4. Step 4: Simplify right side
    28,361,443.86x = 335,699,675,413,495.06
  5. Step 5: Solve for x
    x = 335,699,675,413,495.06/28,361,443.86
  6. Step 6: Final answer
    x = 11,836,480.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.