Home / 190,218,685.44-262,582,142.40-128,422,727.04

Finding the Fourth Proportional to 190,218,685.44, 262,582,142.40 and 128,422,727.04

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Solution

The fourth proportional to 190,218,685.44, 262,582,142.40 and 128,422,727.04 is: 177,277,614.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,218,685.44 : 262,582,142.40 = 128,422,727.04 : x
  2. Step 2: Convert to fraction form
    190,218,685.44/262,582,142.40 = 128,422,727.04/x
  3. Step 3: Cross multiply
    190,218,685.44x = 262,582,142.40 × 128,422,727.04
  4. Step 4: Simplify right side
    190,218,685.44x = 33,721,514,799,013,612
  5. Step 5: Solve for x
    x = 33,721,514,799,013,612/190,218,685.44
  6. Step 6: Final answer
    x = 177,277,614.56

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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.