Home / 213,346,999.20-320,020,498.80-159,599,287.20

Finding the Fourth Proportional to 213,346,999.20, 320,020,498.80 and 159,599,287.20

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Solution

The fourth proportional to 213,346,999.20, 320,020,498.80 and 159,599,287.20 is: 239,398,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,346,999.20 : 320,020,498.80 = 159,599,287.20 : x
  2. Step 2: Convert to fraction form
    213,346,999.20/320,020,498.80 = 159,599,287.20/x
  3. Step 3: Cross multiply
    213,346,999.20x = 320,020,498.80 × 159,599,287.20
  4. Step 4: Simplify right side
    213,346,999.20x = 51,075,043,497,868,456
  5. Step 5: Solve for x
    x = 51,075,043,497,868,456/213,346,999.20
  6. Step 6: Final answer
    x = 239,398,930.80

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1.5x scale

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.