Home / 85,180,772.85-117,646,430.46-57,255,000.31

Finding the Fourth Proportional to 85,180,772.85, 117,646,430.46 and 57,255,000.31

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Solution

The fourth proportional to 85,180,772.85, 117,646,430.46 and 57,255,000.31 is: 79,077,075.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,180,772.85 : 117,646,430.46 = 57,255,000.31 : x
  2. Step 2: Convert to fraction form
    85,180,772.85/117,646,430.46 = 57,255,000.31/x
  3. Step 3: Cross multiply
    85,180,772.85x = 117,646,430.46 × 57,255,000.31
  4. Step 4: Simplify right side
    85,180,772.85x = 6,735,846,412,457,693
  5. Step 5: Solve for x
    x = 6,735,846,412,457,693/85,180,772.85
  6. Step 6: Final answer
    x = 79,077,075.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.