Home / 28,076,203.80-42,078,876.30-13,668,247.80

Finding the Fourth Proportional to 28,076,203.80, 42,078,876.30 and 13,668,247.80

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Solution

The fourth proportional to 28,076,203.80, 42,078,876.30 and 13,668,247.80 is: 20,485,123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076,203.80 : 42,078,876.30 = 13,668,247.80 : x
  2. Step 2: Convert to fraction form
    28,076,203.80/42,078,876.30 = 13,668,247.80/x
  3. Step 3: Cross multiply
    28,076,203.80x = 42,078,876.30 × 13,668,247.80
  4. Step 4: Simplify right side
    28,076,203.80x = 575,144,508,413,947.12
  5. Step 5: Solve for x
    x = 575,144,508,413,947.12/28,076,203.80
  6. Step 6: Final answer
    x = 20,485,123.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.