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Finding the Fourth Proportional to 40,679,271.80, 61,018,907.70 and 13,752,927.80

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Solution

The fourth proportional to 40,679,271.80, 61,018,907.70 and 13,752,927.80 is: 20,629,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,679,271.80 : 61,018,907.70 = 13,752,927.80 : x
  2. Step 2: Convert to fraction form
    40,679,271.80/61,018,907.70 = 13,752,927.80/x
  3. Step 3: Cross multiply
    40,679,271.80x = 61,018,907.70 × 13,752,927.80
  4. Step 4: Simplify right side
    40,679,271.80x = 839,188,632,032,964.12
  5. Step 5: Solve for x
    x = 839,188,632,032,964.12/40,679,271.80
  6. Step 6: Final answer
    x = 20,629,391.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.