Home / 72,204,935.34-99,642,225.03-39,165,102.30

Finding the Fourth Proportional to 72,204,935.34, 99,642,225.03 and 39,165,102.30

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Solution

The fourth proportional to 72,204,935.34, 99,642,225.03 and 39,165,102.30 is: 54,047,523.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,204,935.34 : 99,642,225.03 = 39,165,102.30 : x
  2. Step 2: Convert to fraction form
    72,204,935.34/99,642,225.03 = 39,165,102.30/x
  3. Step 3: Cross multiply
    72,204,935.34x = 99,642,225.03 × 39,165,102.30
  4. Step 4: Simplify right side
    72,204,935.34x = 3,902,497,936,699,570.50
  5. Step 5: Solve for x
    x = 3,902,497,936,699,570.50/72,204,935.34
  6. Step 6: Final answer
    x = 54,047,523.46

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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.