Home / 145,305,342.49-218,060,150.23-131,412,685.87

Finding the Fourth Proportional to 145,305,342.49, 218,060,150.23 and 131,412,685.87

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Solution

The fourth proportional to 145,305,342.49, 218,060,150.23 and 131,412,685.87 is: 197,211,400.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,305,342.49 : 218,060,150.23 = 131,412,685.87 : x
  2. Step 2: Convert to fraction form
    145,305,342.49/218,060,150.23 = 131,412,685.87/x
  3. Step 3: Cross multiply
    145,305,342.49x = 218,060,150.23 × 131,412,685.87
  4. Step 4: Simplify right side
    145,305,342.49x = 28,655,870,022,939,996
  5. Step 5: Solve for x
    x = 28,655,870,022,939,996/145,305,342.49
  6. Step 6: Final answer
    x = 197,211,400.02

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1.5x scale

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.