Home / 21,308,012.10-31,962,613.66-6,931,079.96

Finding the Fourth Proportional to 21,308,012.10, 31,962,613.66 and 6,931,079.96

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Solution

The fourth proportional to 21,308,012.10, 31,962,613.66 and 6,931,079.96 is: 10,396,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308,012.10 : 31,962,613.66 = 6,931,079.96 : x
  2. Step 2: Convert to fraction form
    21,308,012.10/31,962,613.66 = 6,931,079.96/x
  3. Step 3: Cross multiply
    21,308,012.10x = 31,962,613.66 × 6,931,079.96
  4. Step 4: Simplify right side
    21,308,012.10x = 221,535,431,008,048.25
  5. Step 5: Solve for x
    x = 221,535,431,008,048.25/21,308,012.10
  6. Step 6: Final answer
    x = 10,396,813.65

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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.