Home / 287,718,305.88-397,050,515.30-160,557,650.91

Finding the Fourth Proportional to 287,718,305.88, 397,050,515.30 and 160,557,650.91

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Solution

The fourth proportional to 287,718,305.88, 397,050,515.30 and 160,557,650.91 is: 221,569,141.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,718,305.88 : 397,050,515.30 = 160,557,650.91 : x
  2. Step 2: Convert to fraction form
    287,718,305.88/397,050,515.30 = 160,557,650.91/x
  3. Step 3: Cross multiply
    287,718,305.88x = 397,050,515.30 × 160,557,650.91
  4. Step 4: Simplify right side
    287,718,305.88x = 63,749,498,028,370,224
  5. Step 5: Solve for x
    x = 63,749,498,028,370,224/287,718,305.88
  6. Step 6: Final answer
    x = 221,569,141.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.