Home / 145,305,342.74-218,060,150.61-131,412,686.12

Finding the Fourth Proportional to 145,305,342.74, 218,060,150.61 and 131,412,686.12

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Solution

The fourth proportional to 145,305,342.74, 218,060,150.61 and 131,412,686.12 is: 197,211,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,305,342.74 : 218,060,150.61 = 131,412,686.12 : x
  2. Step 2: Convert to fraction form
    145,305,342.74/218,060,150.61 = 131,412,686.12/x
  3. Step 3: Cross multiply
    145,305,342.74x = 218,060,150.61 × 131,412,686.12
  4. Step 4: Simplify right side
    145,305,342.74x = 28,655,870,127,391,860
  5. Step 5: Solve for x
    x = 28,655,870,127,391,860/145,305,342.74
  6. Step 6: Final answer
    x = 197,211,400.40

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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.