Home / 278,865,156.60-417,489,962.96-210,067,701.74

Finding the Fourth Proportional to 278,865,156.60, 417,489,962.96 and 210,067,701.74

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Solution

The fourth proportional to 278,865,156.60, 417,489,962.96 and 210,067,701.74 is: 314,493,062.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,865,156.60 : 417,489,962.96 = 210,067,701.74 : x
  2. Step 2: Convert to fraction form
    278,865,156.60/417,489,962.96 = 210,067,701.74/x
  3. Step 3: Cross multiply
    278,865,156.60x = 417,489,962.96 × 210,067,701.74
  4. Step 4: Simplify right side
    278,865,156.60x = 87,701,157,018,524,928
  5. Step 5: Solve for x
    x = 87,701,157,018,524,928/278,865,156.60
  6. Step 6: Final answer
    x = 314,493,062.12

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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.