Home / 132,880,643.20-199,320,964.80-84,200,647.60

Finding the Fourth Proportional to 132,880,643.20, 199,320,964.80 and 84,200,647.60

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Solution

The fourth proportional to 132,880,643.20, 199,320,964.80 and 84,200,647.60 is: 126,300,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,880,643.20 : 199,320,964.80 = 84,200,647.60 : x
  2. Step 2: Convert to fraction form
    132,880,643.20/199,320,964.80 = 84,200,647.60/x
  3. Step 3: Cross multiply
    132,880,643.20x = 199,320,964.80 × 84,200,647.60
  4. Step 4: Simplify right side
    132,880,643.20x = 16,782,954,316,416,804
  5. Step 5: Solve for x
    x = 16,782,954,316,416,804/132,880,643.20
  6. Step 6: Final answer
    x = 126,300,971.40

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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.