Home / 21,193,428.80-31,794,883.80-7,730,256.80

Finding the Fourth Proportional to 21,193,428.80, 31,794,883.80 and 7,730,256.80

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Solution

The fourth proportional to 21,193,428.80, 31,794,883.80 and 7,730,256.80 is: 11,597,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193,428.80 : 31,794,883.80 = 7,730,256.80 : x
  2. Step 2: Convert to fraction form
    21,193,428.80/31,794,883.80 = 7,730,256.80/x
  3. Step 3: Cross multiply
    21,193,428.80x = 31,794,883.80 × 7,730,256.80
  4. Step 4: Simplify right side
    21,193,428.80x = 245,782,616,700,159.84
  5. Step 5: Solve for x
    x = 245,782,616,700,159.84/21,193,428.80
  6. Step 6: Final answer
    x = 11,597,114.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.