Home / 38,689,108.92-53,390,968.43-21,285,080.51

Finding the Fourth Proportional to 38,689,108.92, 53,390,968.43 and 21,285,080.51

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Solution

The fourth proportional to 38,689,108.92, 53,390,968.43 and 21,285,080.51 is: 29,373,410.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689,108.92 : 53,390,968.43 = 21,285,080.51 : x
  2. Step 2: Convert to fraction form
    38,689,108.92/53,390,968.43 = 21,285,080.51/x
  3. Step 3: Cross multiply
    38,689,108.92x = 53,390,968.43 × 21,285,080.51
  4. Step 4: Simplify right side
    38,689,108.92x = 1,136,431,061,166,038
  5. Step 5: Solve for x
    x = 1,136,431,061,166,038/38,689,108.92
  6. Step 6: Final answer
    x = 29,373,410.06

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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.