Home / 38,689,112.46-53,390,973.16-21,285,084.02

Finding the Fourth Proportional to 38,689,112.46, 53,390,973.16 and 21,285,084.02

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Solution

The fourth proportional to 38,689,112.46, 53,390,973.16 and 21,285,084.02 is: 29,373,414.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689,112.46 : 53,390,973.16 = 21,285,084.02 : x
  2. Step 2: Convert to fraction form
    38,689,112.46/53,390,973.16 = 21,285,084.02/x
  3. Step 3: Cross multiply
    38,689,112.46x = 53,390,973.16 × 21,285,084.02
  4. Step 4: Simplify right side
    38,689,112.46x = 1,136,431,349,620,164.75
  5. Step 5: Solve for x
    x = 1,136,431,349,620,164.75/38,689,112.46
  6. Step 6: Final answer
    x = 29,373,414.83

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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.