Home / 38,689,114.46-53,390,975.92-21,285,086.02

Finding the Fourth Proportional to 38,689,114.46, 53,390,975.92 and 21,285,086.02

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Solution

The fourth proportional to 38,689,114.46, 53,390,975.92 and 21,285,086.02 is: 29,373,417.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689,114.46 : 53,390,975.92 = 21,285,086.02 : x
  2. Step 2: Convert to fraction form
    38,689,114.46/53,390,975.92 = 21,285,086.02/x
  3. Step 3: Cross multiply
    38,689,114.46x = 53,390,975.92 × 21,285,086.02
  4. Step 4: Simplify right side
    38,689,114.46x = 1,136,431,515,148,948.75
  5. Step 5: Solve for x
    x = 1,136,431,515,148,948.75/38,689,114.46
  6. Step 6: Final answer
    x = 29,373,417.59

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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.