Home / 21,935,497.60-30,261,607.86-13,228,720.12

Finding the Fourth Proportional to 21,935,497.60, 30,261,607.86 and 13,228,720.12

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Solution

The fourth proportional to 21,935,497.60, 30,261,607.86 and 13,228,720.12 is: 18,249,977.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935,497.60 : 30,261,607.86 = 13,228,720.12 : x
  2. Step 2: Convert to fraction form
    21,935,497.60/30,261,607.86 = 13,228,720.12/x
  3. Step 3: Cross multiply
    21,935,497.60x = 30,261,607.86 × 13,228,720.12
  4. Step 4: Simplify right side
    21,935,497.60x = 400,322,340,761,132.12
  5. Step 5: Solve for x
    x = 400,322,340,761,132.12/21,935,497.60
  6. Step 6: Final answer
    x = 18,249,977.64

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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.