Home / 685,967,094.52-946,643,199.90-372,706,539.86

Finding the Fourth Proportional to 685,967,094.52, 946,643,199.90 and 372,706,539.86

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Solution

The fourth proportional to 685,967,094.52, 946,643,199.90 and 372,706,539.86 is: 514,339,702.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,967,094.52 : 946,643,199.90 = 372,706,539.86 : x
  2. Step 2: Convert to fraction form
    685,967,094.52/946,643,199.90 = 372,706,539.86/x
  3. Step 3: Cross multiply
    685,967,094.52x = 946,643,199.90 × 372,706,539.86
  4. Step 4: Simplify right side
    685,967,094.52x = 352,820,111,517,230,400
  5. Step 5: Solve for x
    x = 352,820,111,517,230,400/685,967,094.52
  6. Step 6: Final answer
    x = 514,339,702.79

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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.