Home / 215,682,815.80-323,524,223.70-100,678,983.40

Finding the Fourth Proportional to 215,682,815.80, 323,524,223.70 and 100,678,983.40

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Solution

The fourth proportional to 215,682,815.80, 323,524,223.70 and 100,678,983.40 is: 151,018,475.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,682,815.80 : 323,524,223.70 = 100,678,983.40 : x
  2. Step 2: Convert to fraction form
    215,682,815.80/323,524,223.70 = 100,678,983.40/x
  3. Step 3: Cross multiply
    215,682,815.80x = 323,524,223.70 × 100,678,983.40
  4. Step 4: Simplify right side
    215,682,815.80x = 32,572,089,947,390,188
  5. Step 5: Solve for x
    x = 32,572,089,947,390,188/215,682,815.80
  6. Step 6: Final answer
    x = 151,018,475.10

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1.5x scale

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.