Home / 15,728,398.03-21,700,803.09-10,144,281.70

Finding the Fourth Proportional to 15,728,398.03, 21,700,803.09 and 10,144,281.70

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Solution

The fourth proportional to 15,728,398.03, 21,700,803.09 and 10,144,281.70 is: 13,996,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,728,398.03 : 21,700,803.09 = 10,144,281.70 : x
  2. Step 2: Convert to fraction form
    15,728,398.03/21,700,803.09 = 10,144,281.70/x
  3. Step 3: Cross multiply
    15,728,398.03x = 21,700,803.09 × 10,144,281.70
  4. Step 4: Simplify right side
    15,728,398.03x = 220,139,059,661,190.44
  5. Step 5: Solve for x
    x = 220,139,059,661,190.44/15,728,398.03
  6. Step 6: Final answer
    x = 13,996,279.80

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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.