Home / 213,780,461.80-320,670,692.70-189,546,752.20

Finding the Fourth Proportional to 213,780,461.80, 320,670,692.70 and 189,546,752.20

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Solution

The fourth proportional to 213,780,461.80, 320,670,692.70 and 189,546,752.20 is: 284,320,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,780,461.80 : 320,670,692.70 = 189,546,752.20 : x
  2. Step 2: Convert to fraction form
    213,780,461.80/320,670,692.70 = 189,546,752.20/x
  3. Step 3: Cross multiply
    213,780,461.80x = 320,670,692.70 × 189,546,752.20
  4. Step 4: Simplify right side
    213,780,461.80x = 60,782,088,327,009,240
  5. Step 5: Solve for x
    x = 60,782,088,327,009,240/213,780,461.80
  6. Step 6: Final answer
    x = 284,320,128.30

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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.