Home / 287,482,985.29-396,726,521.52-163,735,176.97

Finding the Fourth Proportional to 287,482,985.29, 396,726,521.52 and 163,735,176.97

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Solution

The fourth proportional to 287,482,985.29, 396,726,521.52 and 163,735,176.97 is: 225,954,545.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,482,985.29 : 396,726,521.52 = 163,735,176.97 : x
  2. Step 2: Convert to fraction form
    287,482,985.29/396,726,521.52 = 163,735,176.97/x
  3. Step 3: Cross multiply
    287,482,985.29x = 396,726,521.52 × 163,735,176.97
  4. Step 4: Simplify right side
    287,482,985.29x = 64,958,087,209,769,712
  5. Step 5: Solve for x
    x = 64,958,087,209,769,712/287,482,985.29
  6. Step 6: Final answer
    x = 225,954,545.26

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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.