Home / 28,128,807.76-42,194,845.08-10,857,106.48

Finding the Fourth Proportional to 28,128,807.76, 42,194,845.08 and 10,857,106.48

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Solution

The fourth proportional to 28,128,807.76, 42,194,845.08 and 10,857,106.48 is: 16,286,290.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,128,807.76 : 42,194,845.08 = 10,857,106.48 : x
  2. Step 2: Convert to fraction form
    28,128,807.76/42,194,845.08 = 10,857,106.48/x
  3. Step 3: Cross multiply
    28,128,807.76x = 42,194,845.08 × 10,857,106.48
  4. Step 4: Simplify right side
    28,128,807.76x = 458,113,925,940,664.12
  5. Step 5: Solve for x
    x = 458,113,925,940,664.12/28,128,807.76
  6. Step 6: Final answer
    x = 16,286,290.19

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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.