Home / 28,772,017.41-43,128,945.61-12,387,988.91

Finding the Fourth Proportional to 28,772,017.41, 43,128,945.61 and 12,387,988.91

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Solution

The fourth proportional to 28,772,017.41, 43,128,945.61 and 12,387,988.91 is: 18,569,462.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772,017.41 : 43,128,945.61 = 12,387,988.91 : x
  2. Step 2: Convert to fraction form
    28,772,017.41/43,128,945.61 = 12,387,988.91/x
  3. Step 3: Cross multiply
    28,772,017.41x = 43,128,945.61 × 12,387,988.91
  4. Step 4: Simplify right side
    28,772,017.41x = 534,280,899,916,673.19
  5. Step 5: Solve for x
    x = 534,280,899,916,673.19/28,772,017.41
  6. Step 6: Final answer
    x = 18,569,462.55

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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.