Home / 5,212,291.78-7,192,957.71-2,920,468.87

Finding the Fourth Proportional to 5,212,291.78, 7,192,957.71 and 2,920,468.87

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Solution

The fourth proportional to 5,212,291.78, 7,192,957.71 and 2,920,468.87 is: 4,030,244.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212,291.78 : 7,192,957.71 = 2,920,468.87 : x
  2. Step 2: Convert to fraction form
    5,212,291.78/7,192,957.71 = 2,920,468.87/x
  3. Step 3: Cross multiply
    5,212,291.78x = 7,192,957.71 × 2,920,468.87
  4. Step 4: Simplify right side
    5,212,291.78x = 21,006,809,075,281.49
  5. Step 5: Solve for x
    x = 21,006,809,075,281.49/5,212,291.78
  6. Step 6: Final answer
    x = 4,030,244.27

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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.