Home / 8,221,390-11,344,749.70-4,913,027.89

Finding the Fourth Proportional to 8,221,390, 11,344,749.70 and 4,913,027.89

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Solution

The fourth proportional to 8,221,390, 11,344,749.70 and 4,913,027.89 is: 6,779,519.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221,390 : 11,344,749.70 = 4,913,027.89 : x
  2. Step 2: Convert to fraction form
    8,221,390/11,344,749.70 = 4,913,027.89/x
  3. Step 3: Cross multiply
    8,221,390x = 11,344,749.70 × 4,913,027.89
  4. Step 4: Simplify right side
    8,221,390x = 55,737,071,681,169.12
  5. Step 5: Solve for x
    x = 55,737,071,681,169.12/8,221,390
  6. Step 6: Final answer
    x = 6,779,519.24

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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.