Home / 38,689,109.42-53,390,969.22-21,285,081.26

Finding the Fourth Proportional to 38,689,109.42, 53,390,969.22 and 21,285,081.26

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Solution

The fourth proportional to 38,689,109.42, 53,390,969.22 and 21,285,081.26 is: 29,373,411.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689,109.42 : 53,390,969.22 = 21,285,081.26 : x
  2. Step 2: Convert to fraction form
    38,689,109.42/53,390,969.22 = 21,285,081.26/x
  3. Step 3: Cross multiply
    38,689,109.42x = 53,390,969.22 × 21,285,081.26
  4. Step 4: Simplify right side
    38,689,109.42x = 1,136,431,118,397,859
  5. Step 5: Solve for x
    x = 1,136,431,118,397,859/38,689,109.42
  6. Step 6: Final answer
    x = 29,373,411.16

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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.