Home / 478,860,186.60-660,826,765.20-258,843,612.60

Finding the Fourth Proportional to 478,860,186.60, 660,826,765.20 and 258,843,612.60

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Solution

The fourth proportional to 478,860,186.60, 660,826,765.20 and 258,843,612.60 is: 357,204,027.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,860,186.60 : 660,826,765.20 = 258,843,612.60 : x
  2. Step 2: Convert to fraction form
    478,860,186.60/660,826,765.20 = 258,843,612.60/x
  3. Step 3: Cross multiply
    478,860,186.60x = 660,826,765.20 × 258,843,612.60
  4. Step 4: Simplify right side
    478,860,186.60x = 171,050,787,207,139,968
  5. Step 5: Solve for x
    x = 171,050,787,207,139,968/478,860,186.60
  6. Step 6: Final answer
    x = 357,204,027.38

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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.