Home / 20,316,174.21-28,037,129.09-11,149,145.01

Finding the Fourth Proportional to 20,316,174.21, 28,037,129.09 and 11,149,145.01

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Solution

The fourth proportional to 20,316,174.21, 28,037,129.09 and 11,149,145.01 is: 15,386,263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316,174.21 : 28,037,129.09 = 11,149,145.01 : x
  2. Step 2: Convert to fraction form
    20,316,174.21/28,037,129.09 = 11,149,145.01/x
  3. Step 3: Cross multiply
    20,316,174.21x = 28,037,129.09 × 11,149,145.01
  4. Step 4: Simplify right side
    20,316,174.21x = 312,590,017,832,753.62
  5. Step 5: Solve for x
    x = 312,590,017,832,753.62/20,316,174.21
  6. Step 6: Final answer
    x = 15,386,263.90

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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.