Home / 20,883,519,769.47-28,819,260,390.80-11,368,143,755.12

Finding the Fourth Proportional to 20,883,519,769.47, 28,819,260,390.80 and 11,368,143,755.12

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Solution

The fourth proportional to 20,883,519,769.47, 28,819,260,390.80 and 11,368,143,755.12 is: 15,688,040,074.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883,519,769.47 : 28,819,260,390.80 = 11,368,143,755.12 : x
  2. Step 2: Convert to fraction form
    20,883,519,769.47/28,819,260,390.80 = 11,368,143,755.12/x
  3. Step 3: Cross multiply
    20,883,519,769.47x = 28,819,260,390.80 × 11,368,143,755.12
  4. Step 4: Simplify right side
    20,883,519,769.47x = 327,621,495,038,649,237,504
  5. Step 5: Solve for x
    x = 327,621,495,038,649,237,504/20,883,519,769.47
  6. Step 6: Final answer
    x = 15,688,040,074.43

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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.