Home / 384,890,277.68-531,152,530.30-208,678,613.84

Finding the Fourth Proportional to 384,890,277.68, 531,152,530.30 and 208,678,613.84

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Solution

The fourth proportional to 384,890,277.68, 531,152,530.30 and 208,678,613.84 is: 287,978,627.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,890,277.68 : 531,152,530.30 = 208,678,613.84 : x
  2. Step 2: Convert to fraction form
    384,890,277.68/531,152,530.30 = 208,678,613.84/x
  3. Step 3: Cross multiply
    384,890,277.68x = 531,152,530.30 × 208,678,613.84
  4. Step 4: Simplify right side
    384,890,277.68x = 110,840,173,760,612,608
  5. Step 5: Solve for x
    x = 110,840,173,760,612,608/384,890,277.68
  6. Step 6: Final answer
    x = 287,978,627.13

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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.