Home / 337,008,638.40-505,512,957.60-142,887,019.20

Finding the Fourth Proportional to 337,008,638.40, 505,512,957.60 and 142,887,019.20

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Solution

The fourth proportional to 337,008,638.40, 505,512,957.60 and 142,887,019.20 is: 214,330,528.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,008,638.40 : 505,512,957.60 = 142,887,019.20 : x
  2. Step 2: Convert to fraction form
    337,008,638.40/505,512,957.60 = 142,887,019.20/x
  3. Step 3: Cross multiply
    337,008,638.40x = 505,512,957.60 × 142,887,019.20
  4. Step 4: Simplify right side
    337,008,638.40x = 72,231,239,678,439,984
  5. Step 5: Solve for x
    x = 72,231,239,678,439,984/337,008,638.40
  6. Step 6: Final answer
    x = 214,330,528.80

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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.