Home / 670,434,838.32-1,005,694,777.80-210,391,149.36

Finding the Fourth Proportional to 670,434,838.32, 1,005,694,777.80 and 210,391,149.36

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Solution

The fourth proportional to 670,434,838.32, 1,005,694,777.80 and 210,391,149.36 is: 315,600,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,434,838.32 : 1,005,694,777.80 = 210,391,149.36 : x
  2. Step 2: Convert to fraction form
    670,434,838.32/1,005,694,777.80 = 210,391,149.36/x
  3. Step 3: Cross multiply
    670,434,838.32x = 1,005,694,777.80 × 210,391,149.36
  4. Step 4: Simplify right side
    670,434,838.32x = 211,589,280,206,691,808
  5. Step 5: Solve for x
    x = 211,589,280,206,691,808/670,434,838.32
  6. Step 6: Final answer
    x = 315,600,067.47

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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.