Home / 380,946,505.64-571,282,745.52-131,884,134.44

Finding the Fourth Proportional to 380,946,505.64, 571,282,745.52 and 131,884,134.44

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Solution

The fourth proportional to 380,946,505.64, 571,282,745.52 and 131,884,134.44 is: 197,778,767.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,946,505.64 : 571,282,745.52 = 131,884,134.44 : x
  2. Step 2: Convert to fraction form
    380,946,505.64/571,282,745.52 = 131,884,134.44/x
  3. Step 3: Cross multiply
    380,946,505.64x = 571,282,745.52 × 131,884,134.44
  4. Step 4: Simplify right side
    380,946,505.64x = 75,343,130,413,411,984
  5. Step 5: Solve for x
    x = 75,343,130,413,411,984/380,946,505.64
  6. Step 6: Final answer
    x = 197,778,767.62

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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.