Home / 15,185,372.12-20,955,814.64-8,309,854.52

Finding the Fourth Proportional to 15,185,372.12, 20,955,814.64 and 8,309,854.52

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Solution

The fourth proportional to 15,185,372.12, 20,955,814.64 and 8,309,854.52 is: 11,467,599.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,185,372.12 : 20,955,814.64 = 8,309,854.52 : x
  2. Step 2: Convert to fraction form
    15,185,372.12/20,955,814.64 = 8,309,854.52/x
  3. Step 3: Cross multiply
    15,185,372.12x = 20,955,814.64 × 8,309,854.52
  4. Step 4: Simplify right side
    15,185,372.12x = 174,139,771,006,486.16
  5. Step 5: Solve for x
    x = 174,139,771,006,486.16/15,185,372.12
  6. Step 6: Final answer
    x = 11,467,599.85

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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.