Home / 20,406,827.02-28,161,421.43-11,239,469.77

Finding the Fourth Proportional to 20,406,827.02, 28,161,421.43 and 11,239,469.77

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Solution

The fourth proportional to 20,406,827.02, 28,161,421.43 and 11,239,469.77 is: 15,510,468.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406,827.02 : 28,161,421.43 = 11,239,469.77 : x
  2. Step 2: Convert to fraction form
    20,406,827.02/28,161,421.43 = 11,239,469.77/x
  3. Step 3: Cross multiply
    20,406,827.02x = 28,161,421.43 × 11,239,469.77
  4. Step 4: Simplify right side
    20,406,827.02x = 316,519,444,842,715.12
  5. Step 5: Solve for x
    x = 316,519,444,842,715.12/20,406,827.02
  6. Step 6: Final answer
    x = 15,510,468.36

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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.