Home / 498,856,543.20-747,886,683.60-211,405,816.80

Finding the Fourth Proportional to 498,856,543.20, 747,886,683.60 and 211,405,816.80

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Solution

The fourth proportional to 498,856,543.20, 747,886,683.60 and 211,405,816.80 is: 316,940,004.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,856,543.20 : 747,886,683.60 = 211,405,816.80 : x
  2. Step 2: Convert to fraction form
    498,856,543.20/747,886,683.60 = 211,405,816.80/x
  3. Step 3: Cross multiply
    498,856,543.20x = 747,886,683.60 × 211,405,816.80
  4. Step 4: Simplify right side
    498,856,543.20x = 158,107,595,220,301,184
  5. Step 5: Solve for x
    x = 158,107,595,220,301,184/498,856,543.20
  6. Step 6: Final answer
    x = 316,940,004.85

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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.