Home / 14,091,692.20-21,137,538.30-13,139,909.80

Finding the Fourth Proportional to 14,091,692.20, 21,137,538.30 and 13,139,909.80

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Solution

The fourth proportional to 14,091,692.20, 21,137,538.30 and 13,139,909.80 is: 19,709,864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091,692.20 : 21,137,538.30 = 13,139,909.80 : x
  2. Step 2: Convert to fraction form
    14,091,692.20/21,137,538.30 = 13,139,909.80/x
  3. Step 3: Cross multiply
    14,091,692.20x = 21,137,538.30 × 13,139,909.80
  4. Step 4: Simplify right side
    14,091,692.20x = 277,745,346,656,045.38
  5. Step 5: Solve for x
    x = 277,745,346,656,045.38/14,091,692.20
  6. Step 6: Final answer
    x = 19,709,864.70

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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.