Home / 145,155,998.40-217,733,997.60-83,933,995.20

Finding the Fourth Proportional to 145,155,998.40, 217,733,997.60 and 83,933,995.20

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Solution

The fourth proportional to 145,155,998.40, 217,733,997.60 and 83,933,995.20 is: 125,900,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,155,998.40 : 217,733,997.60 = 83,933,995.20 : x
  2. Step 2: Convert to fraction form
    145,155,998.40/217,733,997.60 = 83,933,995.20/x
  3. Step 3: Cross multiply
    145,155,998.40x = 217,733,997.60 × 83,933,995.20
  4. Step 4: Simplify right side
    145,155,998.40x = 18,275,284,309,435,212
  5. Step 5: Solve for x
    x = 18,275,284,309,435,212/145,155,998.40
  6. Step 6: Final answer
    x = 125,900,992.80

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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.