Home / 15,507,318.68-21,399,748.17-9,709,299.80

Finding the Fourth Proportional to 15,507,318.68, 21,399,748.17 and 9,709,299.80

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Solution

The fourth proportional to 15,507,318.68, 21,399,748.17 and 9,709,299.80 is: 13,398,613.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507,318.68 : 21,399,748.17 = 9,709,299.80 : x
  2. Step 2: Convert to fraction form
    15,507,318.68/21,399,748.17 = 9,709,299.80/x
  3. Step 3: Cross multiply
    15,507,318.68x = 21,399,748.17 × 9,709,299.80
  4. Step 4: Simplify right side
    15,507,318.68x = 207,776,570,563,871.81
  5. Step 5: Solve for x
    x = 207,776,570,563,871.81/15,507,318.68
  6. Step 6: Final answer
    x = 13,398,613.58

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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.