Home / 281,631,821,386.88-422,621,492,909.64-130,509,954,562.52

Finding the Fourth Proportional to 281,631,821,386.88, 422,621,492,909.64 and 130,509,954,562.52

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Solution

The fourth proportional to 281,631,821,386.88, 422,621,492,909.64 and 130,509,954,562.52 is: 195,845,453,703.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,631,821,386.88 : 422,621,492,909.64 = 130,509,954,562.52 : x
  2. Step 2: Convert to fraction form
    281,631,821,386.88/422,621,492,909.64 = 130,509,954,562.52/x
  3. Step 3: Cross multiply
    281,631,821,386.88x = 422,621,492,909.64 × 130,509,954,562.52
  4. Step 4: Simplify right side
    281,631,821,386.88x = 55,156,311,836,781,491,257,344
  5. Step 5: Solve for x
    x = 55,156,311,836,781,491,257,344/281,631,821,386.88
  6. Step 6: Final answer
    x = 195,845,453,703.23

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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.