Home / 208,851,130,976.78-313,276,305,461.85-65,441,137,930.74

Finding the Fourth Proportional to 208,851,130,976.78, 313,276,305,461.85 and 65,441,137,930.74

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Solution

The fourth proportional to 208,851,130,976.78, 313,276,305,461.85 and 65,441,137,930.74 is: 98,161,584,379.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,851,130,976.78 : 313,276,305,461.85 = 65,441,137,930.74 : x
  2. Step 2: Convert to fraction form
    208,851,130,976.78/313,276,305,461.85 = 65,441,137,930.74/x
  3. Step 3: Cross multiply
    208,851,130,976.78x = 313,276,305,461.85 × 65,441,137,930.74
  4. Step 4: Simplify right side
    208,851,130,976.78x = 20,501,157,916,161,559,494,656
  5. Step 5: Solve for x
    x = 20,501,157,916,161,559,494,656/208,851,130,976.78
  6. Step 6: Final answer
    x = 98,161,584,379.65

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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.