Home / 66,495,172.20-99,805,743.90-40,986,004.20

Finding the Fourth Proportional to 66,495,172.20, 99,805,743.90 and 40,986,004.20

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Solution

The fourth proportional to 66,495,172.20, 99,805,743.90 and 40,986,004.20 is: 61,517,829.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,495,172.20 : 99,805,743.90 = 40,986,004.20 : x
  2. Step 2: Convert to fraction form
    66,495,172.20/99,805,743.90 = 40,986,004.20/x
  3. Step 3: Cross multiply
    66,495,172.20x = 99,805,743.90 × 40,986,004.20
  4. Step 4: Simplify right side
    66,495,172.20x = 4,090,638,638,669,525
  5. Step 5: Solve for x
    x = 4,090,638,638,669,525/66,495,172.20
  6. Step 6: Final answer
    x = 61,517,829.09

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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.