Home / 143,989,874.40-215,984,811.60-115,292,060.40

Finding the Fourth Proportional to 143,989,874.40, 215,984,811.60 and 115,292,060.40

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Solution

The fourth proportional to 143,989,874.40, 215,984,811.60 and 115,292,060.40 is: 172,938,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,989,874.40 : 215,984,811.60 = 115,292,060.40 : x
  2. Step 2: Convert to fraction form
    143,989,874.40/215,984,811.60 = 115,292,060.40/x
  3. Step 3: Cross multiply
    143,989,874.40x = 215,984,811.60 × 115,292,060.40
  4. Step 4: Simplify right side
    143,989,874.40x = 24,901,333,944,469,820
  5. Step 5: Solve for x
    x = 24,901,333,944,469,820/143,989,874.40
  6. Step 6: Final answer
    x = 172,938,090.60

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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.