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Finding the Fourth Proportional to 272,608,746.40, 408,915,452.40 and 90,855,924.40

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Solution

The fourth proportional to 272,608,746.40, 408,915,452.40 and 90,855,924.40 is: 136,284,664.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,608,746.40 : 408,915,452.40 = 90,855,924.40 : x
  2. Step 2: Convert to fraction form
    272,608,746.40/408,915,452.40 = 90,855,924.40/x
  3. Step 3: Cross multiply
    272,608,746.40x = 408,915,452.40 × 90,855,924.40
  4. Step 4: Simplify right side
    272,608,746.40x = 37,152,391,429,246,200
  5. Step 5: Solve for x
    x = 37,152,391,429,246,200/272,608,746.40
  6. Step 6: Final answer
    x = 136,284,664.08

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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.