Home / 281,798,812.80-388,885,178.52-158,036,832.72

Finding the Fourth Proportional to 281,798,812.80, 388,885,178.52 and 158,036,832.72

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Solution

The fourth proportional to 281,798,812.80, 388,885,178.52 and 158,036,832.72 is: 218,092,408.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,798,812.80 : 388,885,178.52 = 158,036,832.72 : x
  2. Step 2: Convert to fraction form
    281,798,812.80/388,885,178.52 = 158,036,832.72/x
  3. Step 3: Cross multiply
    281,798,812.80x = 388,885,178.52 × 158,036,832.72
  4. Step 4: Simplify right side
    281,798,812.80x = 61,458,181,905,052,576
  5. Step 5: Solve for x
    x = 61,458,181,905,052,576/281,798,812.80
  6. Step 6: Final answer
    x = 218,092,408.89

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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.