Home / 215,683,657.20-323,525,485.80-203,779,378.80

Finding the Fourth Proportional to 215,683,657.20, 323,525,485.80 and 203,779,378.80

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Solution

The fourth proportional to 215,683,657.20, 323,525,485.80 and 203,779,378.80 is: 305,669,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,683,657.20 : 323,525,485.80 = 203,779,378.80 : x
  2. Step 2: Convert to fraction form
    215,683,657.20/323,525,485.80 = 203,779,378.80/x
  3. Step 3: Cross multiply
    215,683,657.20x = 323,525,485.80 × 203,779,378.80
  4. Step 4: Simplify right side
    215,683,657.20x = 65,927,822,522,292,224
  5. Step 5: Solve for x
    x = 65,927,822,522,292,224/215,683,657.20
  6. Step 6: Final answer
    x = 305,669,068.20

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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.