Home / 31,212,005.10-46,818,007.65-21,008,337.90

Finding the Fourth Proportional to 31,212,005.10, 46,818,007.65 and 21,008,337.90

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Solution

The fourth proportional to 31,212,005.10, 46,818,007.65 and 21,008,337.90 is: 31,512,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,212,005.10 : 46,818,007.65 = 21,008,337.90 : x
  2. Step 2: Convert to fraction form
    31,212,005.10/46,818,007.65 = 21,008,337.90/x
  3. Step 3: Cross multiply
    31,212,005.10x = 46,818,007.65 × 21,008,337.90
  4. Step 4: Simplify right side
    31,212,005.10x = 983,568,524,515,984.88
  5. Step 5: Solve for x
    x = 983,568,524,515,984.88/31,212,005.10
  6. Step 6: Final answer
    x = 31,512,506.85

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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.