Home / 515,106,416.40-772,659,624.60-310,529,187.60

Finding the Fourth Proportional to 515,106,416.40, 772,659,624.60 and 310,529,187.60

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Solution

The fourth proportional to 515,106,416.40, 772,659,624.60 and 310,529,187.60 is: 465,793,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,106,416.40 : 772,659,624.60 = 310,529,187.60 : x
  2. Step 2: Convert to fraction form
    515,106,416.40/772,659,624.60 = 310,529,187.60/x
  3. Step 3: Cross multiply
    515,106,416.40x = 772,659,624.60 × 310,529,187.60
  4. Step 4: Simplify right side
    515,106,416.40x = 239,933,365,518,359,008
  5. Step 5: Solve for x
    x = 239,933,365,518,359,008/515,106,416.40
  6. Step 6: Final answer
    x = 465,793,781.40

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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.