Home / 66,880,172.30-100,320,258.45-56,676,505.10

Finding the Fourth Proportional to 66,880,172.30, 100,320,258.45 and 56,676,505.10

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Solution

The fourth proportional to 66,880,172.30, 100,320,258.45 and 56,676,505.10 is: 85,014,757.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,880,172.30 : 100,320,258.45 = 56,676,505.10 : x
  2. Step 2: Convert to fraction form
    66,880,172.30/100,320,258.45 = 56,676,505.10/x
  3. Step 3: Cross multiply
    66,880,172.30x = 100,320,258.45 × 56,676,505.10
  4. Step 4: Simplify right side
    66,880,172.30x = 5,685,801,639,674,743
  5. Step 5: Solve for x
    x = 5,685,801,639,674,743/66,880,172.30
  6. Step 6: Final answer
    x = 85,014,757.65

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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.