Home / 208,138,599,052.39-287,325,382,227.15-131,089,673,334.57

Finding the Fourth Proportional to 208,138,599,052.39, 287,325,382,227.15 and 131,089,673,334.57

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Solution

The fourth proportional to 208,138,599,052.39, 287,325,382,227.15 and 131,089,673,334.57 is: 180,963,024,966.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,138,599,052.39 : 287,325,382,227.15 = 131,089,673,334.57 : x
  2. Step 2: Convert to fraction form
    208,138,599,052.39/287,325,382,227.15 = 131,089,673,334.57/x
  3. Step 3: Cross multiply
    208,138,599,052.39x = 287,325,382,227.15 × 131,089,673,334.57
  4. Step 4: Simplify right side
    208,138,599,052.39x = 37,665,390,496,887,563,354,112
  5. Step 5: Solve for x
    x = 37,665,390,496,887,563,354,112/208,138,599,052.39
  6. Step 6: Final answer
    x = 180,963,024,966.87

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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.