Home / 278,865,262-417,490,120.50-210,067,807.24

Finding the Fourth Proportional to 278,865,262, 417,490,120.50 and 210,067,807.24

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Solution

The fourth proportional to 278,865,262, 417,490,120.50 and 210,067,807.24 is: 314,493,219.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,865,262 : 417,490,120.50 = 210,067,807.24 : x
  2. Step 2: Convert to fraction form
    278,865,262/417,490,120.50 = 210,067,807.24/x
  3. Step 3: Cross multiply
    278,865,262x = 417,490,120.50 × 210,067,807.24
  4. Step 4: Simplify right side
    278,865,262x = 87,701,234,157,798,384
  5. Step 5: Solve for x
    x = 87,701,234,157,798,384/278,865,262
  6. Step 6: Final answer
    x = 314,493,219.88

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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.