Home / 282,129,776.38-389,303,836.35-156,664,913.66

Finding the Fourth Proportional to 282,129,776.38, 389,303,836.35 and 156,664,913.66

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Solution

The fourth proportional to 282,129,776.38, 389,303,836.35 and 156,664,913.66 is: 216,178,003.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,129,776.38 : 389,303,836.35 = 156,664,913.66 : x
  2. Step 2: Convert to fraction form
    282,129,776.38/389,303,836.35 = 156,664,913.66/x
  3. Step 3: Cross multiply
    282,129,776.38x = 389,303,836.35 × 156,664,913.66
  4. Step 4: Simplify right side
    282,129,776.38x = 60,990,251,909,279,520
  5. Step 5: Solve for x
    x = 60,990,251,909,279,520/282,129,776.38
  6. Step 6: Final answer
    x = 216,178,003.94

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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.