Home / 38,420,636.16-53,021,742.52-21,016,583.08

Finding the Fourth Proportional to 38,420,636.16, 53,021,742.52 and 21,016,583.08

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Solution

The fourth proportional to 38,420,636.16, 53,021,742.52 and 21,016,583.08 is: 29,003,576.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,420,636.16 : 53,021,742.52 = 21,016,583.08 : x
  2. Step 2: Convert to fraction form
    38,420,636.16/53,021,742.52 = 21,016,583.08/x
  3. Step 3: Cross multiply
    38,420,636.16x = 53,021,742.52 × 21,016,583.08
  4. Step 4: Simplify right side
    38,420,636.16x = 1,114,335,856,717,948.50
  5. Step 5: Solve for x
    x = 1,114,335,856,717,948.50/38,420,636.16
  6. Step 6: Final answer
    x = 29,003,576.41

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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.