Home / 39,379,043.40-54,343,089.72-21,737,956.20

Finding the Fourth Proportional to 39,379,043.40, 54,343,089.72 and 21,737,956.20

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Solution

The fourth proportional to 39,379,043.40, 54,343,089.72 and 21,737,956.20 is: 29,998,384.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,379,043.40 : 54,343,089.72 = 21,737,956.20 : x
  2. Step 2: Convert to fraction form
    39,379,043.40/54,343,089.72 = 21,737,956.20/x
  3. Step 3: Cross multiply
    39,379,043.40x = 54,343,089.72 × 21,737,956.20
  4. Step 4: Simplify right side
    39,379,043.40x = 1,181,307,704,106,030.25
  5. Step 5: Solve for x
    x = 1,181,307,704,106,030.25/39,379,043.40
  6. Step 6: Final answer
    x = 29,998,384.98

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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.