Home / 210,135,768,967.86-315,138,462,665.94-75,812,797,293.18

Finding the Fourth Proportional to 210,135,768,967.86, 315,138,462,665.94 and 75,812,797,293.18

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Solution

The fourth proportional to 210,135,768,967.86, 315,138,462,665.94 and 75,812,797,293.18 is: 113,695,676,403.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,135,768,967.86 : 315,138,462,665.94 = 75,812,797,293.18 : x
  2. Step 2: Convert to fraction form
    210,135,768,967.86/315,138,462,665.94 = 75,812,797,293.18/x
  3. Step 3: Cross multiply
    210,135,768,967.86x = 315,138,462,665.94 × 75,812,797,293.18
  4. Step 4: Simplify right side
    210,135,768,967.86x = 23,891,528,389,377,279,393,792
  5. Step 5: Solve for x
    x = 23,891,528,389,377,279,393,792/210,135,768,967.86
  6. Step 6: Final answer
    x = 113,695,676,403.53

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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.