Home / 12,078,817.64-18,095,365.83-7,140,063.47

Finding the Fourth Proportional to 12,078,817.64, 18,095,365.83 and 7,140,063.47

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Solution

The fourth proportional to 12,078,817.64, 18,095,365.83 and 7,140,063.47 is: 10,696,581.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078,817.64 : 18,095,365.83 = 7,140,063.47 : x
  2. Step 2: Convert to fraction form
    12,078,817.64/18,095,365.83 = 7,140,063.47/x
  3. Step 3: Cross multiply
    12,078,817.64x = 18,095,365.83 × 7,140,063.47
  4. Step 4: Simplify right side
    12,078,817.64x = 129,202,060,539,069.22
  5. Step 5: Solve for x
    x = 129,202,060,539,069.22/12,078,817.64
  6. Step 6: Final answer
    x = 10,696,581.77

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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.