Home / 328,025,170.08-492,042,524.40-85,688,100

Finding the Fourth Proportional to 328,025,170.08, 492,042,524.40 and 85,688,100

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Solution

The fourth proportional to 328,025,170.08, 492,042,524.40 and 85,688,100 is: 128,533,395.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,025,170.08 : 492,042,524.40 = 85,688,100 : x
  2. Step 2: Convert to fraction form
    328,025,170.08/492,042,524.40 = 85,688,100/x
  3. Step 3: Cross multiply
    328,025,170.08x = 492,042,524.40 × 85,688,100
  4. Step 4: Simplify right side
    328,025,170.08x = 42,162,189,035,039,640
  5. Step 5: Solve for x
    x = 42,162,189,035,039,640/328,025,170.08
  6. Step 6: Final answer
    x = 128,533,395.85

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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.