Home / 19,280,286.72-28,921,182.72-5,817,116.16

Finding the Fourth Proportional to 19,280,286.72, 28,921,182.72 and 5,817,116.16

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Solution

The fourth proportional to 19,280,286.72, 28,921,182.72 and 5,817,116.16 is: 8,725,901.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280,286.72 : 28,921,182.72 = 5,817,116.16 : x
  2. Step 2: Convert to fraction form
    19,280,286.72/28,921,182.72 = 5,817,116.16/x
  3. Step 3: Cross multiply
    19,280,286.72x = 28,921,182.72 × 5,817,116.16
  4. Step 4: Simplify right side
    19,280,286.72x = 168,237,879,366,824.75
  5. Step 5: Solve for x
    x = 168,237,879,366,824.75/19,280,286.72
  6. Step 6: Final answer
    x = 8,725,901.32

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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.