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Finding the Fourth Proportional to 463,854,831, 640,103,356.62 and 255,009,453

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Solution

The fourth proportional to 463,854,831, 640,103,356.62 and 255,009,453 is: 351,904,078.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,854,831 : 640,103,356.62 = 255,009,453 : x
  2. Step 2: Convert to fraction form
    463,854,831/640,103,356.62 = 255,009,453/x
  3. Step 3: Cross multiply
    463,854,831x = 640,103,356.62 × 255,009,453
  4. Step 4: Simplify right side
    463,854,831x = 163,232,406,835,130,144
  5. Step 5: Solve for x
    x = 163,232,406,835,130,144/463,854,831
  6. Step 6: Final answer
    x = 351,904,078.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.