Home / 20,912,205.30-31,368,307.95-16,607,533.20

Finding the Fourth Proportional to 20,912,205.30, 31,368,307.95 and 16,607,533.20

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Solution

The fourth proportional to 20,912,205.30, 31,368,307.95 and 16,607,533.20 is: 24,911,299.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,205.30 : 31,368,307.95 = 16,607,533.20 : x
  2. Step 2: Convert to fraction form
    20,912,205.30/31,368,307.95 = 16,607,533.20/x
  3. Step 3: Cross multiply
    20,912,205.30x = 31,368,307.95 × 16,607,533.20
  4. Step 4: Simplify right side
    20,912,205.30x = 520,950,215,707,448.88
  5. Step 5: Solve for x
    x = 520,950,215,707,448.88/20,912,205.30
  6. Step 6: Final answer
    x = 24,911,299.80

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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.