Home / 685,887,928.86-946,531,992.75-372,624,388.95

Finding the Fourth Proportional to 685,887,928.86, 946,531,992.75 and 372,624,388.95

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Solution

The fourth proportional to 685,887,928.86, 946,531,992.75 and 372,624,388.95 is: 514,225,270.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,887,928.86 : 946,531,992.75 = 372,624,388.95 : x
  2. Step 2: Convert to fraction form
    685,887,928.86/946,531,992.75 = 372,624,388.95/x
  3. Step 3: Cross multiply
    685,887,928.86x = 946,531,992.75 × 372,624,388.95
  4. Step 4: Simplify right side
    685,887,928.86x = 352,700,905,420,094,592
  5. Step 5: Solve for x
    x = 352,700,905,420,094,592/685,887,928.86
  6. Step 6: Final answer
    x = 514,225,270.02

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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.