Home / 128,011,630.95-191,939,688.45-50,195,310.03

Finding the Fourth Proportional to 128,011,630.95, 191,939,688.45 and 50,195,310.03

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Solution

The fourth proportional to 128,011,630.95, 191,939,688.45 and 50,195,310.03 is: 75,262,474.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,011,630.95 : 191,939,688.45 = 50,195,310.03 : x
  2. Step 2: Convert to fraction form
    128,011,630.95/191,939,688.45 = 50,195,310.03/x
  3. Step 3: Cross multiply
    128,011,630.95x = 191,939,688.45 × 50,195,310.03
  4. Step 4: Simplify right side
    128,011,630.95x = 9,634,472,168,809,360
  5. Step 5: Solve for x
    x = 9,634,472,168,809,360/128,011,630.95
  6. Step 6: Final answer
    x = 75,262,474.96

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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.