Home / 12,921,956.04-19,371,202.32-6,447,011.76

Finding the Fourth Proportional to 12,921,956.04, 19,371,202.32 and 6,447,011.76

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Solution

The fourth proportional to 12,921,956.04, 19,371,202.32 and 6,447,011.76 is: 9,664,664.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,956.04 : 19,371,202.32 = 6,447,011.76 : x
  2. Step 2: Convert to fraction form
    12,921,956.04/19,371,202.32 = 6,447,011.76/x
  3. Step 3: Cross multiply
    12,921,956.04x = 19,371,202.32 × 6,447,011.76
  4. Step 4: Simplify right side
    12,921,956.04x = 124,886,369,162,379.28
  5. Step 5: Solve for x
    x = 124,886,369,162,379.28/12,921,956.04
  6. Step 6: Final answer
    x = 9,664,664.45

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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.