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Finding the Fourth Proportional to 7,038,672, 9,713,393.28 and 3,819,408

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Solution

The fourth proportional to 7,038,672, 9,713,393.28 and 3,819,408 is: 5,270,797.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038,672 : 9,713,393.28 = 3,819,408 : x
  2. Step 2: Convert to fraction form
    7,038,672/9,713,393.28 = 3,819,408/x
  3. Step 3: Cross multiply
    7,038,672x = 9,713,393.28 × 3,819,408
  4. Step 4: Simplify right side
    7,038,672x = 37,099,412,000,778.23
  5. Step 5: Solve for x
    x = 37,099,412,000,778.23/7,038,672
  6. Step 6: Final answer
    x = 5,270,797.11

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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.