Home / 20,970,859.36-31,461,054.40-6,399,082.40

Finding the Fourth Proportional to 20,970,859.36, 31,461,054.40 and 6,399,082.40

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Solution

The fourth proportional to 20,970,859.36, 31,461,054.40 and 6,399,082.40 is: 9,600,077.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,970,859.36 : 31,461,054.40 = 6,399,082.40 : x
  2. Step 2: Convert to fraction form
    20,970,859.36/31,461,054.40 = 6,399,082.40/x
  3. Step 3: Cross multiply
    20,970,859.36x = 31,461,054.40 × 6,399,082.40
  4. Step 4: Simplify right side
    20,970,859.36x = 201,321,879,496,482.56
  5. Step 5: Solve for x
    x = 201,321,879,496,482.56/20,970,859.36
  6. Step 6: Final answer
    x = 9,600,077.71

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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.