Home / 12,685,916.80-19,012,027.20-6,913,830.88

Finding the Fourth Proportional to 12,685,916.80, 19,012,027.20 and 6,913,830.88

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Solution

The fourth proportional to 12,685,916.80, 19,012,027.20 and 6,913,830.88 is: 10,361,564.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,685,916.80 : 19,012,027.20 = 6,913,830.88 : x
  2. Step 2: Convert to fraction form
    12,685,916.80/19,012,027.20 = 6,913,830.88/x
  3. Step 3: Cross multiply
    12,685,916.80x = 19,012,027.20 × 6,913,830.88
  4. Step 4: Simplify right side
    12,685,916.80x = 131,445,940,746,759.92
  5. Step 5: Solve for x
    x = 131,445,940,746,759.92/12,685,916.80
  6. Step 6: Final answer
    x = 10,361,564.15

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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.