Home / 21,296,711.28-29,403,650.40-12,597,678.21

Finding the Fourth Proportional to 21,296,711.28, 29,403,650.40 and 12,597,678.21

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Solution

The fourth proportional to 21,296,711.28, 29,403,650.40 and 12,597,678.21 is: 17,393,189.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,296,711.28 : 29,403,650.40 = 12,597,678.21 : x
  2. Step 2: Convert to fraction form
    21,296,711.28/29,403,650.40 = 12,597,678.21/x
  3. Step 3: Cross multiply
    21,296,711.28x = 29,403,650.40 × 12,597,678.21
  4. Step 4: Simplify right side
    21,296,711.28x = 370,417,725,938,537.81
  5. Step 5: Solve for x
    x = 370,417,725,938,537.81/21,296,711.28
  6. Step 6: Final answer
    x = 17,393,189.07

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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.