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Finding the Fourth Proportional to 7,021,658, 9,689,888.04 and 3,802,394

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Solution

The fourth proportional to 7,021,658, 9,689,888.04 and 3,802,394 is: 5,247,303.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021,658 : 9,689,888.04 = 3,802,394 : x
  2. Step 2: Convert to fraction form
    7,021,658/9,689,888.04 = 3,802,394/x
  3. Step 3: Cross multiply
    7,021,658x = 9,689,888.04 × 3,802,394
  4. Step 4: Simplify right side
    7,021,658x = 36,844,772,143,967.76
  5. Step 5: Solve for x
    x = 36,844,772,143,967.76/7,021,658
  6. Step 6: Final answer
    x = 5,247,303.72

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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.