Home / 287,558,874.22-396,849,030-158,664,054.24

Finding the Fourth Proportional to 287,558,874.22, 396,849,030 and 158,664,054.24

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Solution

The fourth proportional to 287,558,874.22, 396,849,030 and 158,664,054.24 is: 218,966,207.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,558,874.22 : 396,849,030 = 158,664,054.24 : x
  2. Step 2: Convert to fraction form
    287,558,874.22/396,849,030 = 158,664,054.24/x
  3. Step 3: Cross multiply
    287,558,874.22x = 396,849,030 × 158,664,054.24
  4. Step 4: Simplify right side
    287,558,874.22x = 62,965,676,021,011,392
  5. Step 5: Solve for x
    x = 62,965,676,021,011,392/287,558,874.22
  6. Step 6: Final answer
    x = 218,966,207.15

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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.