Home / 19,181,763.20-28,725,405.60-9,072,574.40

Finding the Fourth Proportional to 19,181,763.20, 28,725,405.60 and 9,072,574.40

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Solution

The fourth proportional to 19,181,763.20, 28,725,405.60 and 9,072,574.40 is: 13,586,518.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181,763.20 : 28,725,405.60 = 9,072,574.40 : x
  2. Step 2: Convert to fraction form
    19,181,763.20/28,725,405.60 = 9,072,574.40/x
  3. Step 3: Cross multiply
    19,181,763.20x = 28,725,405.60 × 9,072,574.40
  4. Step 4: Simplify right side
    19,181,763.20x = 260,613,379,476,176.66
  5. Step 5: Solve for x
    x = 260,613,379,476,176.66/19,181,763.20
  6. Step 6: Final answer
    x = 13,586,518.44

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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.