Home / 15,314,642.73-21,133,935.79-8,345,381.87

Finding the Fourth Proportional to 15,314,642.73, 21,133,935.79 and 8,345,381.87

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Solution

The fourth proportional to 15,314,642.73, 21,133,935.79 and 8,345,381.87 is: 11,516,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314,642.73 : 21,133,935.79 = 8,345,381.87 : x
  2. Step 2: Convert to fraction form
    15,314,642.73/21,133,935.79 = 8,345,381.87/x
  3. Step 3: Cross multiply
    15,314,642.73x = 21,133,935.79 × 8,345,381.87
  4. Step 4: Simplify right side
    15,314,642.73x = 176,370,764,615,581.53
  5. Step 5: Solve for x
    x = 176,370,764,615,581.53/15,314,642.73
  6. Step 6: Final answer
    x = 11,516,479.21

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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.