Home / 21,731,875.64-29,977,500.16-13,568,941.88

Finding the Fourth Proportional to 21,731,875.64, 29,977,500.16 and 13,568,941.88

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Solution

The fourth proportional to 21,731,875.64, 29,977,500.16 and 13,568,941.88 is: 18,717,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731,875.64 : 29,977,500.16 = 13,568,941.88 : x
  2. Step 2: Convert to fraction form
    21,731,875.64/29,977,500.16 = 13,568,941.88/x
  3. Step 3: Cross multiply
    21,731,875.64x = 29,977,500.16 × 13,568,941.88
  4. Step 4: Simplify right side
    21,731,875.64x = 406,762,957,378,730.75
  5. Step 5: Solve for x
    x = 406,762,957,378,730.75/21,731,875.64
  6. Step 6: Final answer
    x = 18,717,342.40

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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.