Home / 21,000,469.15-31,500,703.73-18,848,133.10

Finding the Fourth Proportional to 21,000,469.15, 31,500,703.73 and 18,848,133.10

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Solution

The fourth proportional to 21,000,469.15, 31,500,703.73 and 18,848,133.10 is: 28,272,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000,469.15 : 31,500,703.73 = 18,848,133.10 : x
  2. Step 2: Convert to fraction form
    21,000,469.15/31,500,703.73 = 18,848,133.10/x
  3. Step 3: Cross multiply
    21,000,469.15x = 31,500,703.73 × 18,848,133.10
  4. Step 4: Simplify right side
    21,000,469.15x = 593,729,456,646,706.50
  5. Step 5: Solve for x
    x = 593,729,456,646,706.50/21,000,469.15
  6. Step 6: Final answer
    x = 28,272,199.65

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1.5x scale

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.