Home / 287,718,305.28-397,050,514.47-160,557,650.31

Finding the Fourth Proportional to 287,718,305.28, 397,050,514.47 and 160,557,650.31

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Solution

The fourth proportional to 287,718,305.28, 397,050,514.47 and 160,557,650.31 is: 221,569,140.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,718,305.28 : 397,050,514.47 = 160,557,650.31 : x
  2. Step 2: Convert to fraction form
    287,718,305.28/397,050,514.47 = 160,557,650.31/x
  3. Step 3: Cross multiply
    287,718,305.28x = 397,050,514.47 × 160,557,650.31
  4. Step 4: Simplify right side
    287,718,305.28x = 63,749,497,657,679,864
  5. Step 5: Solve for x
    x = 63,749,497,657,679,864/287,718,305.28
  6. Step 6: Final answer
    x = 221,569,140.68

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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.