Home / 219,950,690.80-329,142,215.40-191,509,193.20

Finding the Fourth Proportional to 219,950,690.80, 329,142,215.40 and 191,509,193.20

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Solution

The fourth proportional to 219,950,690.80, 329,142,215.40 and 191,509,193.20 is: 286,581,323.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,950,690.80 : 329,142,215.40 = 191,509,193.20 : x
  2. Step 2: Convert to fraction form
    219,950,690.80/329,142,215.40 = 191,509,193.20/x
  3. Step 3: Cross multiply
    219,950,690.80x = 329,142,215.40 × 191,509,193.20
  4. Step 4: Simplify right side
    219,950,690.80x = 63,033,760,119,314,608
  5. Step 5: Solve for x
    x = 63,033,760,119,314,608/219,950,690.80
  6. Step 6: Final answer
    x = 286,581,323.71

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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.