Home / 20,051,914,062.69-30,078,870,159.38-7,631,207,280.45

Finding the Fourth Proportional to 20,051,914,062.69, 30,078,870,159.38 and 7,631,207,280.45

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Solution

The fourth proportional to 20,051,914,062.69, 30,078,870,159.38 and 7,631,207,280.45 is: 11,447,191,137.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051,914,062.69 : 30,078,870,159.38 = 7,631,207,280.45 : x
  2. Step 2: Convert to fraction form
    20,051,914,062.69/30,078,870,159.38 = 7,631,207,280.45/x
  3. Step 3: Cross multiply
    20,051,914,062.69x = 30,078,870,159.38 × 7,631,207,280.45
  4. Step 4: Simplify right side
    20,051,914,062.69x = 229,538,092,947,932,741,632
  5. Step 5: Solve for x
    x = 229,538,092,947,932,741,632/20,051,914,062.69
  6. Step 6: Final answer
    x = 11,447,191,137.48

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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.