Home / 13,040,489.75-17,994,973.04-7,238,812.91

Finding the Fourth Proportional to 13,040,489.75, 17,994,973.04 and 7,238,812.91

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Solution

The fourth proportional to 13,040,489.75, 17,994,973.04 and 7,238,812.91 is: 9,989,060.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040,489.75 : 17,994,973.04 = 7,238,812.91 : x
  2. Step 2: Convert to fraction form
    13,040,489.75/17,994,973.04 = 7,238,812.91/x
  3. Step 3: Cross multiply
    13,040,489.75x = 17,994,973.04 × 7,238,812.91
  4. Step 4: Simplify right side
    13,040,489.75x = 130,262,243,030,885.02
  5. Step 5: Solve for x
    x = 130,262,243,030,885.02/13,040,489.75
  6. Step 6: Final answer
    x = 9,989,060.65

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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.