Home / 13,013,200.89-17,958,217.28-7,212,356.30

Finding the Fourth Proportional to 13,013,200.89, 17,958,217.28 and 7,212,356.30

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Solution

The fourth proportional to 13,013,200.89, 17,958,217.28 and 7,212,356.30 is: 9,953,051.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013,200.89 : 17,958,217.28 = 7,212,356.30 : x
  2. Step 2: Convert to fraction form
    13,013,200.89/17,958,217.28 = 7,212,356.30/x
  3. Step 3: Cross multiply
    13,013,200.89x = 17,958,217.28 × 7,212,356.30
  4. Step 4: Simplify right side
    13,013,200.89x = 129,521,061,545,010.62
  5. Step 5: Solve for x
    x = 129,521,061,545,010.62/13,013,200.89
  6. Step 6: Final answer
    x = 9,953,051.72

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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.