Home / 213,509,577.60-320,264,366.40-140,824,195.20

Finding the Fourth Proportional to 213,509,577.60, 320,264,366.40 and 140,824,195.20

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Solution

The fourth proportional to 213,509,577.60, 320,264,366.40 and 140,824,195.20 is: 211,236,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,509,577.60 : 320,264,366.40 = 140,824,195.20 : x
  2. Step 2: Convert to fraction form
    213,509,577.60/320,264,366.40 = 140,824,195.20/x
  3. Step 3: Cross multiply
    213,509,577.60x = 320,264,366.40 × 140,824,195.20
  4. Step 4: Simplify right side
    213,509,577.60x = 45,100,971,649,517,912
  5. Step 5: Solve for x
    x = 45,100,971,649,517,912/213,509,577.60
  6. Step 6: Final answer
    x = 211,236,292.80

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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.