Home / 5,129,798.63-7,079,129-2,806,909.38

Finding the Fourth Proportional to 5,129,798.63, 7,079,129 and 2,806,909.38

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Solution

The fourth proportional to 5,129,798.63, 7,079,129 and 2,806,909.38 is: 3,873,538.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129,798.63 : 7,079,129 = 2,806,909.38 : x
  2. Step 2: Convert to fraction form
    5,129,798.63/7,079,129 = 2,806,909.38/x
  3. Step 3: Cross multiply
    5,129,798.63x = 7,079,129 × 2,806,909.38
  4. Step 4: Simplify right side
    5,129,798.63x = 19,870,473,592,330.02
  5. Step 5: Solve for x
    x = 19,870,473,592,330.02/5,129,798.63
  6. Step 6: Final answer
    x = 3,873,538.71

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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.