Home / 488,872,796.54-676,420,984.68-426,279,417.26

Finding the Fourth Proportional to 488,872,796.54, 676,420,984.68 and 426,279,417.26

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Solution

The fourth proportional to 488,872,796.54, 676,420,984.68 and 426,279,417.26 is: 589,814,661.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,872,796.54 : 676,420,984.68 = 426,279,417.26 : x
  2. Step 2: Convert to fraction form
    488,872,796.54/676,420,984.68 = 426,279,417.26/x
  3. Step 3: Cross multiply
    488,872,796.54x = 676,420,984.68 × 426,279,417.26
  4. Step 4: Simplify right side
    488,872,796.54x = 288,344,343,171,825,728
  5. Step 5: Solve for x
    x = 288,344,343,171,825,728/488,872,796.54
  6. Step 6: Final answer
    x = 589,814,661.84

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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.