Home / 20,334,692.84-28,051,499.89-12,984,798.20

Finding the Fourth Proportional to 20,334,692.84, 28,051,499.89 and 12,984,798.20

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Solution

The fourth proportional to 20,334,692.84, 28,051,499.89 and 12,984,798.20 is: 17,912,395.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334,692.84 : 28,051,499.89 = 12,984,798.20 : x
  2. Step 2: Convert to fraction form
    20,334,692.84/28,051,499.89 = 12,984,798.20/x
  3. Step 3: Cross multiply
    20,334,692.84x = 28,051,499.89 × 12,984,798.20
  4. Step 4: Simplify right side
    20,334,692.84x = 364,243,065,106,252.69
  5. Step 5: Solve for x
    x = 364,243,065,106,252.69/20,334,692.84
  6. Step 6: Final answer
    x = 17,912,395.73

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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.