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Finding the Fourth Proportional to 388,774,866.61, 583,577,286.26 and 167,555,380.65

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Solution

The fourth proportional to 388,774,866.61, 583,577,286.26 and 167,555,380.65 is: 251,511,923.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,774,866.61 : 583,577,286.26 = 167,555,380.65 : x
  2. Step 2: Convert to fraction form
    388,774,866.61/583,577,286.26 = 167,555,380.65/x
  3. Step 3: Cross multiply
    388,774,866.61x = 583,577,286.26 × 167,555,380.65
  4. Step 4: Simplify right side
    388,774,866.61x = 97,781,514,334,962,128
  5. Step 5: Solve for x
    x = 97,781,514,334,962,128/388,774,866.61
  6. Step 6: Final answer
    x = 251,511,923.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.