Home / 13,013,564.44-17,958,720.60-7,212,720.68

Finding the Fourth Proportional to 13,013,564.44, 17,958,720.60 and 7,212,720.68

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Solution

The fourth proportional to 13,013,564.44, 17,958,720.60 and 7,212,720.68 is: 9,953,555.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013,564.44 : 17,958,720.60 = 7,212,720.68 : x
  2. Step 2: Convert to fraction form
    13,013,564.44/17,958,720.60 = 7,212,720.68/x
  3. Step 3: Cross multiply
    13,013,564.44x = 17,958,720.60 × 7,212,720.68
  4. Step 4: Simplify right side
    13,013,564.44x = 129,531,235,457,962.02
  5. Step 5: Solve for x
    x = 129,531,235,457,962.02/13,013,564.44
  6. Step 6: Final answer
    x = 9,953,555.47

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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.