Home / 121,665,923.40-167,898,283.96-65,912,429.88

Finding the Fourth Proportional to 121,665,923.40, 167,898,283.96 and 65,912,429.88

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Solution

The fourth proportional to 121,665,923.40, 167,898,283.96 and 65,912,429.88 is: 90,958,779.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,665,923.40 : 167,898,283.96 = 65,912,429.88 : x
  2. Step 2: Convert to fraction form
    121,665,923.40/167,898,283.96 = 65,912,429.88/x
  3. Step 3: Cross multiply
    121,665,923.40x = 167,898,283.96 × 65,912,429.88
  4. Step 4: Simplify right side
    121,665,923.40x = 11,066,583,868,485,830
  5. Step 5: Solve for x
    x = 11,066,583,868,485,830/121,665,923.40
  6. Step 6: Final answer
    x = 90,958,779.25

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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.