Home / 138,997,739.69-208,508,727.06-45,596,707.05

Finding the Fourth Proportional to 138,997,739.69, 208,508,727.06 and 45,596,707.05

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Solution

The fourth proportional to 138,997,739.69, 208,508,727.06 and 45,596,707.05 is: 68,399,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,997,739.69 : 208,508,727.06 = 45,596,707.05 : x
  2. Step 2: Convert to fraction form
    138,997,739.69/208,508,727.06 = 45,596,707.05/x
  3. Step 3: Cross multiply
    138,997,739.69x = 208,508,727.06 × 45,596,707.05
  4. Step 4: Simplify right side
    138,997,739.69x = 9,507,311,345,123,228
  5. Step 5: Solve for x
    x = 9,507,311,345,123,228/138,997,739.69
  6. Step 6: Final answer
    x = 68,399,035.60

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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.