Home / 438,400,511.10-657,600,766.65-271,953,189.90

Finding the Fourth Proportional to 438,400,511.10, 657,600,766.65 and 271,953,189.90

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Solution

The fourth proportional to 438,400,511.10, 657,600,766.65 and 271,953,189.90 is: 407,929,784.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,400,511.10 : 657,600,766.65 = 271,953,189.90 : x
  2. Step 2: Convert to fraction form
    438,400,511.10/657,600,766.65 = 271,953,189.90/x
  3. Step 3: Cross multiply
    438,400,511.10x = 657,600,766.65 × 271,953,189.90
  4. Step 4: Simplify right side
    438,400,511.10x = 178,836,626,171,153,024
  5. Step 5: Solve for x
    x = 178,836,626,171,153,024/438,400,511.10
  6. Step 6: Final answer
    x = 407,929,784.85

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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.