Home / 398,956,388.34-597,915,506.22-162,330,147.12

Finding the Fourth Proportional to 398,956,388.34, 597,915,506.22 and 162,330,147.12

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Solution

The fourth proportional to 398,956,388.34, 597,915,506.22 and 162,330,147.12 is: 243,284,015.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,956,388.34 : 597,915,506.22 = 162,330,147.12 : x
  2. Step 2: Convert to fraction form
    398,956,388.34/597,915,506.22 = 162,330,147.12/x
  3. Step 3: Cross multiply
    398,956,388.34x = 597,915,506.22 × 162,330,147.12
  4. Step 4: Simplify right side
    398,956,388.34x = 97,059,712,090,021,888
  5. Step 5: Solve for x
    x = 97,059,712,090,021,888/398,956,388.34
  6. Step 6: Final answer
    x = 243,284,015.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.