Home / 12,946,082.40-19,423,789.20-5,378,479.20

Finding the Fourth Proportional to 12,946,082.40, 19,423,789.20 and 5,378,479.20

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Solution

The fourth proportional to 12,946,082.40, 19,423,789.20 and 5,378,479.20 is: 8,069,657.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946,082.40 : 19,423,789.20 = 5,378,479.20 : x
  2. Step 2: Convert to fraction form
    12,946,082.40/19,423,789.20 = 5,378,479.20/x
  3. Step 3: Cross multiply
    12,946,082.40x = 19,423,789.20 × 5,378,479.20
  4. Step 4: Simplify right side
    12,946,082.40x = 104,470,446,197,384.64
  5. Step 5: Solve for x
    x = 104,470,446,197,384.64/12,946,082.40
  6. Step 6: Final answer
    x = 8,069,657.13

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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.