Home / 651,726,529.20-977,589,793.80-215,094,603.60

Finding the Fourth Proportional to 651,726,529.20, 977,589,793.80 and 215,094,603.60

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Solution

The fourth proportional to 651,726,529.20, 977,589,793.80 and 215,094,603.60 is: 322,641,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,726,529.20 : 977,589,793.80 = 215,094,603.60 : x
  2. Step 2: Convert to fraction form
    651,726,529.20/977,589,793.80 = 215,094,603.60/x
  3. Step 3: Cross multiply
    651,726,529.20x = 977,589,793.80 × 215,094,603.60
  4. Step 4: Simplify right side
    651,726,529.20x = 210,274,289,180,816,736
  5. Step 5: Solve for x
    x = 210,274,289,180,816,736/651,726,529.20
  6. Step 6: Final answer
    x = 322,641,905.40

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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.