Home / 215,683,790.70-323,525,686.05-203,779,512.30

Finding the Fourth Proportional to 215,683,790.70, 323,525,686.05 and 203,779,512.30

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Solution

The fourth proportional to 215,683,790.70, 323,525,686.05 and 203,779,512.30 is: 305,669,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,683,790.70 : 323,525,686.05 = 203,779,512.30 : x
  2. Step 2: Convert to fraction form
    215,683,790.70/323,525,686.05 = 203,779,512.30/x
  3. Step 3: Cross multiply
    215,683,790.70x = 323,525,686.05 × 203,779,512.30
  4. Step 4: Simplify right side
    215,683,790.70x = 65,927,906,519,791,920
  5. Step 5: Solve for x
    x = 65,927,906,519,791,920/215,683,790.70
  6. Step 6: Final answer
    x = 305,669,268.45

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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.