Home / 20,440,442.73-28,200,687.90-13,102,322.13

Finding the Fourth Proportional to 20,440,442.73, 28,200,687.90 and 13,102,322.13

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Solution

The fourth proportional to 20,440,442.73, 28,200,687.90 and 13,102,322.13 is: 18,076,638.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440,442.73 : 28,200,687.90 = 13,102,322.13 : x
  2. Step 2: Convert to fraction form
    20,440,442.73/28,200,687.90 = 13,102,322.13/x
  3. Step 3: Cross multiply
    20,440,442.73x = 28,200,687.90 × 13,102,322.13
  4. Step 4: Simplify right side
    20,440,442.73x = 369,494,497,153,393.25
  5. Step 5: Solve for x
    x = 369,494,497,153,393.25/20,440,442.73
  6. Step 6: Final answer
    x = 18,076,638.65

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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.