Home / 309,512,658.63-427,127,454.54-170,280,431.04

Finding the Fourth Proportional to 309,512,658.63, 427,127,454.54 and 170,280,431.04

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Solution

The fourth proportional to 309,512,658.63, 427,127,454.54 and 170,280,431.04 is: 234,986,986.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,512,658.63 : 427,127,454.54 = 170,280,431.04 : x
  2. Step 2: Convert to fraction form
    309,512,658.63/427,127,454.54 = 170,280,431.04/x
  3. Step 3: Cross multiply
    309,512,658.63x = 427,127,454.54 × 170,280,431.04
  4. Step 4: Simplify right side
    309,512,658.63x = 72,731,447,068,089,200
  5. Step 5: Solve for x
    x = 72,731,447,068,089,200/309,512,658.63
  6. Step 6: Final answer
    x = 234,986,986.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.