Home / 12,892,488.40-19,353,631.80-6,920,520.40

Finding the Fourth Proportional to 12,892,488.40, 19,353,631.80 and 6,920,520.40

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Solution

The fourth proportional to 12,892,488.40, 19,353,631.80 and 6,920,520.40 is: 10,388,778.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892,488.40 : 19,353,631.80 = 6,920,520.40 : x
  2. Step 2: Convert to fraction form
    12,892,488.40/19,353,631.80 = 6,920,520.40/x
  3. Step 3: Cross multiply
    12,892,488.40x = 19,353,631.80 × 6,920,520.40
  4. Step 4: Simplify right side
    12,892,488.40x = 133,937,203,685,988.73
  5. Step 5: Solve for x
    x = 133,937,203,685,988.73/12,892,488.40
  6. Step 6: Final answer
    x = 10,388,778.30

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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.