Home / 21,015,132,553.80-31,501,907,534.70-9,954,207,318.60

Finding the Fourth Proportional to 21,015,132,553.80, 31,501,907,534.70 and 9,954,207,318.60

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Solution

The fourth proportional to 21,015,132,553.80, 31,501,907,534.70 and 9,954,207,318.60 is: 14,921,462,794.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015,132,553.80 : 31,501,907,534.70 = 9,954,207,318.60 : x
  2. Step 2: Convert to fraction form
    21,015,132,553.80/31,501,907,534.70 = 9,954,207,318.60/x
  3. Step 3: Cross multiply
    21,015,132,553.80x = 31,501,907,534.70 × 9,954,207,318.60
  4. Step 4: Simplify right side
    21,015,132,553.80x = 313,576,518,531,771,269,120
  5. Step 5: Solve for x
    x = 313,576,518,531,771,269,120/21,015,132,553.80
  6. Step 6: Final answer
    x = 14,921,462,794.92

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1.5x scale

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.