Home / 15,908,771.81-21,953,487.16-9,724,173.68

Finding the Fourth Proportional to 15,908,771.81, 21,953,487.16 and 9,724,173.68

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Solution

The fourth proportional to 15,908,771.81, 21,953,487.16 and 9,724,173.68 is: 13,418,981.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908,771.81 : 21,953,487.16 = 9,724,173.68 : x
  2. Step 2: Convert to fraction form
    15,908,771.81/21,953,487.16 = 9,724,173.68/x
  3. Step 3: Cross multiply
    15,908,771.81x = 21,953,487.16 × 9,724,173.68
  4. Step 4: Simplify right side
    15,908,771.81x = 213,479,522,025,489.94
  5. Step 5: Solve for x
    x = 213,479,522,025,489.94/15,908,771.81
  6. Step 6: Final answer
    x = 13,418,981.97

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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.