Home / 213,799,219.20-320,698,828.80-159,379,660.80

Finding the Fourth Proportional to 213,799,219.20, 320,698,828.80 and 159,379,660.80

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Solution

The fourth proportional to 213,799,219.20, 320,698,828.80 and 159,379,660.80 is: 239,069,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,799,219.20 : 320,698,828.80 = 159,379,660.80 : x
  2. Step 2: Convert to fraction form
    213,799,219.20/320,698,828.80 = 159,379,660.80/x
  3. Step 3: Cross multiply
    213,799,219.20x = 320,698,828.80 × 159,379,660.80
  4. Step 4: Simplify right side
    213,799,219.20x = 51,112,870,553,101,280
  5. Step 5: Solve for x
    x = 51,112,870,553,101,280/213,799,219.20
  6. Step 6: Final answer
    x = 239,069,491.20

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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.