Home / 145,708,190.34-218,500,069.77-84,339,708.57

Finding the Fourth Proportional to 145,708,190.34, 218,500,069.77 and 84,339,708.57

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Solution

The fourth proportional to 145,708,190.34, 218,500,069.77 and 84,339,708.57 is: 126,473,550.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,708,190.34 : 218,500,069.77 = 84,339,708.57 : x
  2. Step 2: Convert to fraction form
    145,708,190.34/218,500,069.77 = 84,339,708.57/x
  3. Step 3: Cross multiply
    145,708,190.34x = 218,500,069.77 × 84,339,708.57
  4. Step 4: Simplify right side
    145,708,190.34x = 18,428,232,205,412,268
  5. Step 5: Solve for x
    x = 18,428,232,205,412,268/145,708,190.34
  6. Step 6: Final answer
    x = 126,473,550.75

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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.