Home / 20,850,531.08-28,773,923.64-11,558,201.36

Finding the Fourth Proportional to 20,850,531.08, 28,773,923.64 and 11,558,201.36

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Solution

The fourth proportional to 20,850,531.08, 28,773,923.64 and 11,558,201.36 is: 15,950,423.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850,531.08 : 28,773,923.64 = 11,558,201.36 : x
  2. Step 2: Convert to fraction form
    20,850,531.08/28,773,923.64 = 11,558,201.36/x
  3. Step 3: Cross multiply
    20,850,531.08x = 28,773,923.64 × 11,558,201.36
  4. Step 4: Simplify right side
    20,850,531.08x = 332,574,803,348,384.12
  5. Step 5: Solve for x
    x = 332,574,803,348,384.12/20,850,531.08
  6. Step 6: Final answer
    x = 15,950,423.62

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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.