Home / 20,778,108,039.42-28,673,020,891.89-11,262,455,479.32

Finding the Fourth Proportional to 20,778,108,039.42, 28,673,020,891.89 and 11,262,455,479.32

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Solution

The fourth proportional to 20,778,108,039.42, 28,673,020,891.89 and 11,262,455,479.32 is: 15,541,772,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,108,039.42 : 28,673,020,891.89 = 11,262,455,479.32 : x
  2. Step 2: Convert to fraction form
    20,778,108,039.42/28,673,020,891.89 = 11,262,455,479.32/x
  3. Step 3: Cross multiply
    20,778,108,039.42x = 28,673,020,891.89 × 11,262,455,479.32
  4. Step 4: Simplify right side
    20,778,108,039.42x = 322,928,621,252,523,327,488
  5. Step 5: Solve for x
    x = 322,928,621,252,523,327,488/20,778,108,039.42
  6. Step 6: Final answer
    x = 15,541,772,169.05

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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.