Home / 28,772,016.91-43,128,944.86-12,387,988.41

Finding the Fourth Proportional to 28,772,016.91, 43,128,944.86 and 12,387,988.41

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Solution

The fourth proportional to 28,772,016.91, 43,128,944.86 and 12,387,988.41 is: 18,569,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772,016.91 : 43,128,944.86 = 12,387,988.41 : x
  2. Step 2: Convert to fraction form
    28,772,016.91/43,128,944.86 = 12,387,988.41/x
  3. Step 3: Cross multiply
    28,772,016.91x = 43,128,944.86 × 12,387,988.41
  4. Step 4: Simplify right side
    28,772,016.91x = 534,280,869,061,209.06
  5. Step 5: Solve for x
    x = 534,280,869,061,209.06/28,772,016.91
  6. Step 6: Final answer
    x = 18,569,461.80

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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.