Home / 287,718,310.28-397,050,521.37-160,557,655.31

Finding the Fourth Proportional to 287,718,310.28, 397,050,521.37 and 160,557,655.31

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Solution

The fourth proportional to 287,718,310.28, 397,050,521.37 and 160,557,655.31 is: 221,569,147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,718,310.28 : 397,050,521.37 = 160,557,655.31 : x
  2. Step 2: Convert to fraction form
    287,718,310.28/397,050,521.37 = 160,557,655.31/x
  3. Step 3: Cross multiply
    287,718,310.28x = 397,050,521.37 × 160,557,655.31
  4. Step 4: Simplify right side
    287,718,310.28x = 63,749,500,750,780,248
  5. Step 5: Solve for x
    x = 63,749,500,750,780,248/287,718,310.28
  6. Step 6: Final answer
    x = 221,569,147.58

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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.