Home / 28,772,015.91-43,128,943.37-12,387,987.41

Finding the Fourth Proportional to 28,772,015.91, 43,128,943.37 and 12,387,987.41

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Solution

The fourth proportional to 28,772,015.91, 43,128,943.37 and 12,387,987.41 is: 18,569,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772,015.91 : 43,128,943.37 = 12,387,987.41 : x
  2. Step 2: Convert to fraction form
    28,772,015.91/43,128,943.37 = 12,387,987.41/x
  3. Step 3: Cross multiply
    28,772,015.91x = 43,128,943.37 × 12,387,987.41
  4. Step 4: Simplify right side
    28,772,015.91x = 534,280,807,196,578.31
  5. Step 5: Solve for x
    x = 534,280,807,196,578.31/28,772,015.91
  6. Step 6: Final answer
    x = 18,569,460.30

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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.