Home / 145,378,305.93-200,622,685.90-79,300,244.19

Finding the Fourth Proportional to 145,378,305.93, 200,622,685.90 and 79,300,244.19

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Solution

The fourth proportional to 145,378,305.93, 200,622,685.90 and 79,300,244.19 is: 109,434,677.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,378,305.93 : 200,622,685.90 = 79,300,244.19 : x
  2. Step 2: Convert to fraction form
    145,378,305.93/200,622,685.90 = 79,300,244.19/x
  3. Step 3: Cross multiply
    145,378,305.93x = 200,622,685.90 × 79,300,244.19
  4. Step 4: Simplify right side
    145,378,305.93x = 15,909,427,981,923,670
  5. Step 5: Solve for x
    x = 15,909,427,981,923,670/145,378,305.93
  6. Step 6: Final answer
    x = 109,434,677.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.