Home / 15,316,597.43-21,136,907.79-8,347,276.64

Finding the Fourth Proportional to 15,316,597.43, 21,136,907.79 and 8,347,276.64

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Solution

The fourth proportional to 15,316,597.43, 21,136,907.79 and 8,347,276.64 is: 11,519,243.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316,597.43 : 21,136,907.79 = 8,347,276.64 : x
  2. Step 2: Convert to fraction form
    15,316,597.43/21,136,907.79 = 8,347,276.64/x
  3. Step 3: Cross multiply
    15,316,597.43x = 21,136,907.79 × 8,347,276.64
  4. Step 4: Simplify right side
    15,316,597.43x = 176,435,616,489,880.09
  5. Step 5: Solve for x
    x = 176,435,616,489,880.09/15,316,597.43
  6. Step 6: Final answer
    x = 11,519,243.57

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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.