Home / 861,285,796.92-1,292,158,603.62-308,644,089.63

Finding the Fourth Proportional to 861,285,796.92, 1,292,158,603.62 and 308,644,089.63

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Solution

The fourth proportional to 861,285,796.92, 1,292,158,603.62 and 308,644,089.63 is: 463,048,522.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,285,796.92 : 1,292,158,603.62 = 308,644,089.63 : x
  2. Step 2: Convert to fraction form
    861,285,796.92/1,292,158,603.62 = 308,644,089.63/x
  3. Step 3: Cross multiply
    861,285,796.92x = 1,292,158,603.62 × 308,644,089.63
  4. Step 4: Simplify right side
    861,285,796.92x = 398,817,115,867,008,384
  5. Step 5: Solve for x
    x = 398,817,115,867,008,384/861,285,796.92
  6. Step 6: Final answer
    x = 463,048,522.68

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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.