Home / 19,158,006.40-28,737,009.60-18,213,222.40

Finding the Fourth Proportional to 19,158,006.40, 28,737,009.60 and 18,213,222.40

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Solution

The fourth proportional to 19,158,006.40, 28,737,009.60 and 18,213,222.40 is: 27,319,833.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158,006.40 : 28,737,009.60 = 18,213,222.40 : x
  2. Step 2: Convert to fraction form
    19,158,006.40/28,737,009.60 = 18,213,222.40/x
  3. Step 3: Cross multiply
    19,158,006.40x = 28,737,009.60 × 18,213,222.40
  4. Step 4: Simplify right side
    19,158,006.40x = 523,393,546,955,735
  5. Step 5: Solve for x
    x = 523,393,546,955,735/19,158,006.40
  6. Step 6: Final answer
    x = 27,319,833.60

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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.