Home / 428,153,872,604.60-642,093,315,541.20-141,247,435,411.66

Finding the Fourth Proportional to 428,153,872,604.60, 642,093,315,541.20 and 141,247,435,411.66

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Solution

The fourth proportional to 428,153,872,604.60, 642,093,315,541.20 and 141,247,435,411.66 is: 211,825,794,225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,153,872,604.60 : 642,093,315,541.20 = 141,247,435,411.66 : x
  2. Step 2: Convert to fraction form
    428,153,872,604.60/642,093,315,541.20 = 141,247,435,411.66/x
  3. Step 3: Cross multiply
    428,153,872,604.60x = 642,093,315,541.20 × 141,247,435,411.66
  4. Step 4: Simplify right side
    428,153,872,604.60x = 90,694,034,115,164,268,134,400
  5. Step 5: Solve for x
    x = 90,694,034,115,164,268,134,400/428,153,872,604.60
  6. Step 6: Final answer
    x = 211,825,794,225.43

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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.