Home / 521,190,181.59-781,784,644.96-133,013,053.47

Finding the Fourth Proportional to 521,190,181.59, 781,784,644.96 and 133,013,053.47

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Solution

The fourth proportional to 521,190,181.59, 781,784,644.96 and 133,013,053.47 is: 199,519,420.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,190,181.59 : 781,784,644.96 = 133,013,053.47 : x
  2. Step 2: Convert to fraction form
    521,190,181.59/781,784,644.96 = 133,013,053.47/x
  3. Step 3: Cross multiply
    521,190,181.59x = 781,784,644.96 × 133,013,053.47
  4. Step 4: Simplify right side
    521,190,181.59x = 103,987,562,781,807,904
  5. Step 5: Solve for x
    x = 103,987,562,781,807,904/521,190,181.59
  6. Step 6: Final answer
    x = 199,519,420.08

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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.