Home / 20,405,803.02-28,161,281.52-11,238,443.34

Finding the Fourth Proportional to 20,405,803.02, 28,161,281.52 and 11,238,443.34

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Solution

The fourth proportional to 20,405,803.02, 28,161,281.52 and 11,238,443.34 is: 15,509,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405,803.02 : 28,161,281.52 = 11,238,443.34 : x
  2. Step 2: Convert to fraction form
    20,405,803.02/28,161,281.52 = 11,238,443.34/x
  3. Step 3: Cross multiply
    20,405,803.02x = 28,161,281.52 × 11,238,443.34
  4. Step 4: Simplify right side
    20,405,803.02x = 316,488,966,744,309.06
  5. Step 5: Solve for x
    x = 316,488,966,744,309.06/20,405,803.02
  6. Step 6: Final answer
    x = 15,509,753.10

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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.