Home / 210,170,818.92-315,134,261.39-99,505,559.85

Finding the Fourth Proportional to 210,170,818.92, 315,134,261.39 and 99,505,559.85

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Solution

The fourth proportional to 210,170,818.92, 315,134,261.39 and 99,505,559.85 is: 149,200,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,170,818.92 : 315,134,261.39 = 99,505,559.85 : x
  2. Step 2: Convert to fraction form
    210,170,818.92/315,134,261.39 = 99,505,559.85/x
  3. Step 3: Cross multiply
    210,170,818.92x = 315,134,261.39 × 99,505,559.85
  4. Step 4: Simplify right side
    210,170,818.92x = 31,357,611,107,808,608
  5. Step 5: Solve for x
    x = 31,357,611,107,808,608/210,170,818.92
  6. Step 6: Final answer
    x = 149,200,594.40

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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.