Home / 215,683,821.20-323,525,731.80-203,779,542.80

Finding the Fourth Proportional to 215,683,821.20, 323,525,731.80 and 203,779,542.80

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Solution

The fourth proportional to 215,683,821.20, 323,525,731.80 and 203,779,542.80 is: 305,669,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,683,821.20 : 323,525,731.80 = 203,779,542.80 : x
  2. Step 2: Convert to fraction form
    215,683,821.20/323,525,731.80 = 203,779,542.80/x
  3. Step 3: Cross multiply
    215,683,821.20x = 323,525,731.80 × 203,779,542.80
  4. Step 4: Simplify right side
    215,683,821.20x = 65,927,925,710,239,424
  5. Step 5: Solve for x
    x = 65,927,925,710,239,424/215,683,821.20
  6. Step 6: Final answer
    x = 305,669,314.20

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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.