Home / 15,336,345.60-21,164,227.20-8,460,825.60

Finding the Fourth Proportional to 15,336,345.60, 21,164,227.20 and 8,460,825.60

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Solution

The fourth proportional to 15,336,345.60, 21,164,227.20 and 8,460,825.60 is: 11,675,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,336,345.60 : 21,164,227.20 = 8,460,825.60 : x
  2. Step 2: Convert to fraction form
    15,336,345.60/21,164,227.20 = 8,460,825.60/x
  3. Step 3: Cross multiply
    15,336,345.60x = 21,164,227.20 × 8,460,825.60
  4. Step 4: Simplify right side
    15,336,345.60x = 179,066,835,297,976.31
  5. Step 5: Solve for x
    x = 179,066,835,297,976.31/15,336,345.60
  6. Step 6: Final answer
    x = 11,675,978.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.