Home / 30,672,692.20-42,328,455.78-16,921,652.20

Finding the Fourth Proportional to 30,672,692.20, 42,328,455.78 and 16,921,652.20

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Solution

The fourth proportional to 30,672,692.20, 42,328,455.78 and 16,921,652.20 is: 23,351,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,672,692.20 : 42,328,455.78 = 16,921,652.20 : x
  2. Step 2: Convert to fraction form
    30,672,692.20/42,328,455.78 = 16,921,652.20/x
  3. Step 3: Cross multiply
    30,672,692.20x = 42,328,455.78 × 16,921,652.20
  4. Step 4: Simplify right side
    30,672,692.20x = 716,267,406,872,239.75
  5. Step 5: Solve for x
    x = 716,267,406,872,239.75/30,672,692.20
  6. Step 6: Final answer
    x = 23,351,957.57

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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.