Home / 7,139,885.14-9,853,212.72-3,876,837.40

Finding the Fourth Proportional to 7,139,885.14, 9,853,212.72 and 3,876,837.40

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Solution

The fourth proportional to 7,139,885.14, 9,853,212.72 and 3,876,837.40 is: 5,350,128.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,885.14 : 9,853,212.72 = 3,876,837.40 : x
  2. Step 2: Convert to fraction form
    7,139,885.14/9,853,212.72 = 3,876,837.40/x
  3. Step 3: Cross multiply
    7,139,885.14x = 9,853,212.72 × 3,876,837.40
  4. Step 4: Simplify right side
    7,139,885.14x = 38,199,303,583,051.73
  5. Step 5: Solve for x
    x = 38,199,303,583,051.73/7,139,885.14
  6. Step 6: Final answer
    x = 5,350,128.59

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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.