Home / 20,487,231,696-28,263,722,451.48-13,715,232,112.20

Finding the Fourth Proportional to 20,487,231,696, 28,263,722,451.48 and 13,715,232,112.20

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Solution

The fourth proportional to 20,487,231,696, 28,263,722,451.48 and 13,715,232,112.20 is: 18,921,224,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487,231,696 : 28,263,722,451.48 = 13,715,232,112.20 : x
  2. Step 2: Convert to fraction form
    20,487,231,696/28,263,722,451.48 = 13,715,232,112.20/x
  3. Step 3: Cross multiply
    20,487,231,696x = 28,263,722,451.48 × 13,715,232,112.20
  4. Step 4: Simplify right side
    20,487,231,696x = 387,643,513,776,846,602,240
  5. Step 5: Solve for x
    x = 387,643,513,776,846,602,240/20,487,231,696
  6. Step 6: Final answer
    x = 18,921,224,669.54

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1.5x scale

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.