Home / 21,983,699.24-30,336,919.62-12,690,955.70

Finding the Fourth Proportional to 21,983,699.24, 30,336,919.62 and 12,690,955.70

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Solution

The fourth proportional to 21,983,699.24, 30,336,919.62 and 12,690,955.70 is: 17,513,180.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,983,699.24 : 30,336,919.62 = 12,690,955.70 : x
  2. Step 2: Convert to fraction form
    21,983,699.24/30,336,919.62 = 12,690,955.70/x
  3. Step 3: Cross multiply
    21,983,699.24x = 30,336,919.62 × 12,690,955.70
  4. Step 4: Simplify right side
    21,983,699.24x = 385,004,502,971,880.81
  5. Step 5: Solve for x
    x = 385,004,502,971,880.81/21,983,699.24
  6. Step 6: Final answer
    x = 17,513,180.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.