Home / 19,251,638.45-28,858,015.24-12,068,207.31

Finding the Fourth Proportional to 19,251,638.45, 28,858,015.24 and 12,068,207.31

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Solution

The fourth proportional to 19,251,638.45, 28,858,015.24 and 12,068,207.31 is: 18,090,123.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251,638.45 : 28,858,015.24 = 12,068,207.31 : x
  2. Step 2: Convert to fraction form
    19,251,638.45/28,858,015.24 = 12,068,207.31/x
  3. Step 3: Cross multiply
    19,251,638.45x = 28,858,015.24 × 12,068,207.31
  4. Step 4: Simplify right side
    19,251,638.45x = 348,264,510,411,118.38
  5. Step 5: Solve for x
    x = 348,264,510,411,118.38/19,251,638.45
  6. Step 6: Final answer
    x = 18,090,123.16

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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.