Home / 18,878,110.34-28,321,426.01-5,748,702.72

Finding the Fourth Proportional to 18,878,110.34, 28,321,426.01 and 5,748,702.72

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Solution

The fourth proportional to 18,878,110.34, 28,321,426.01 and 5,748,702.72 is: 8,624,351.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878,110.34 : 28,321,426.01 = 5,748,702.72 : x
  2. Step 2: Convert to fraction form
    18,878,110.34/28,321,426.01 = 5,748,702.72/x
  3. Step 3: Cross multiply
    18,878,110.34x = 28,321,426.01 × 5,748,702.72
  4. Step 4: Simplify right side
    18,878,110.34x = 162,811,458,737,965.75
  5. Step 5: Solve for x
    x = 162,811,458,737,965.75/18,878,110.34
  6. Step 6: Final answer
    x = 8,624,351.47

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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.