Home / 140,031,727.73-210,039,998.64-42,987,451.85

Finding the Fourth Proportional to 140,031,727.73, 210,039,998.64 and 42,987,451.85

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Solution

The fourth proportional to 140,031,727.73, 210,039,998.64 and 42,987,451.85 is: 64,478,846.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,031,727.73 : 210,039,998.64 = 42,987,451.85 : x
  2. Step 2: Convert to fraction form
    140,031,727.73/210,039,998.64 = 42,987,451.85/x
  3. Step 3: Cross multiply
    140,031,727.73x = 210,039,998.64 × 42,987,451.85
  4. Step 4: Simplify right side
    140,031,727.73x = 9,029,084,328,111,066
  5. Step 5: Solve for x
    x = 9,029,084,328,111,066/140,031,727.73
  6. Step 6: Final answer
    x = 64,478,846.86

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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.