Home / 38,148,943.80-57,226,914.90-12,590,009.40

Finding the Fourth Proportional to 38,148,943.80, 57,226,914.90 and 12,590,009.40

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Solution

The fourth proportional to 38,148,943.80, 57,226,914.90 and 12,590,009.40 is: 18,886,168.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,148,943.80 : 57,226,914.90 = 12,590,009.40 : x
  2. Step 2: Convert to fraction form
    38,148,943.80/57,226,914.90 = 12,590,009.40/x
  3. Step 3: Cross multiply
    38,148,943.80x = 57,226,914.90 × 12,590,009.40
  4. Step 4: Simplify right side
    38,148,943.80x = 720,487,396,524,000.12
  5. Step 5: Solve for x
    x = 720,487,396,524,000.12/38,148,943.80
  6. Step 6: Final answer
    x = 18,886,168.91

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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.