Home / 656,704,201.60-985,056,302.40-172,078,998.40

Finding the Fourth Proportional to 656,704,201.60, 985,056,302.40 and 172,078,998.40

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Solution

The fourth proportional to 656,704,201.60, 985,056,302.40 and 172,078,998.40 is: 258,118,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,704,201.60 : 985,056,302.40 = 172,078,998.40 : x
  2. Step 2: Convert to fraction form
    656,704,201.60/985,056,302.40 = 172,078,998.40/x
  3. Step 3: Cross multiply
    656,704,201.60x = 985,056,302.40 × 172,078,998.40
  4. Step 4: Simplify right side
    656,704,201.60x = 169,507,501,884,599,520
  5. Step 5: Solve for x
    x = 169,507,501,884,599,520/656,704,201.60
  6. Step 6: Final answer
    x = 258,118,497.60

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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.