Home / 13,380,484.47-18,463,587.60-7,419,741.36

Finding the Fourth Proportional to 13,380,484.47, 18,463,587.60 and 7,419,741.36

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Solution

The fourth proportional to 13,380,484.47, 18,463,587.60 and 7,419,741.36 is: 10,238,421.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380,484.47 : 18,463,587.60 = 7,419,741.36 : x
  2. Step 2: Convert to fraction form
    13,380,484.47/18,463,587.60 = 7,419,741.36/x
  3. Step 3: Cross multiply
    13,380,484.47x = 18,463,587.60 × 7,419,741.36
  4. Step 4: Simplify right side
    13,380,484.47x = 136,995,044,569,703.16
  5. Step 5: Solve for x
    x = 136,995,044,569,703.16/13,380,484.47
  6. Step 6: Final answer
    x = 10,238,421.85

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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.