Home / 121,430,776.76-167,574,692.38-66,426,633.26

Finding the Fourth Proportional to 121,430,776.76, 167,574,692.38 and 66,426,633.26

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Solution

The fourth proportional to 121,430,776.76, 167,574,692.38 and 66,426,633.26 is: 91,668,874.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,430,776.76 : 167,574,692.38 = 66,426,633.26 : x
  2. Step 2: Convert to fraction form
    121,430,776.76/167,574,692.38 = 66,426,633.26/x
  3. Step 3: Cross multiply
    121,430,776.76x = 167,574,692.38 × 66,426,633.26
  4. Step 4: Simplify right side
    121,430,776.76x = 11,131,422,634,383,576
  5. Step 5: Solve for x
    x = 11,131,422,634,383,576/121,430,776.76
  6. Step 6: Final answer
    x = 91,668,874.49

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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.