Home / 12,355,511.42-18,533,376.48-5,072,976.38

Finding the Fourth Proportional to 12,355,511.42, 18,533,376.48 and 5,072,976.38

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Solution

The fourth proportional to 12,355,511.42, 18,533,376.48 and 5,072,976.38 is: 7,609,509.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355,511.42 : 18,533,376.48 = 5,072,976.38 : x
  2. Step 2: Convert to fraction form
    12,355,511.42/18,533,376.48 = 5,072,976.38/x
  3. Step 3: Cross multiply
    12,355,511.42x = 18,533,376.48 × 5,072,976.38
  4. Step 4: Simplify right side
    12,355,511.42x = 94,019,381,124,687.55
  5. Step 5: Solve for x
    x = 94,019,381,124,687.55/12,355,511.42
  6. Step 6: Final answer
    x = 7,609,509.47

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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.