Home / 156,685,720.20-235,065,905.10-75,840,203.40

Finding the Fourth Proportional to 156,685,720.20, 235,065,905.10 and 75,840,203.40

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Solution

The fourth proportional to 156,685,720.20, 235,065,905.10 and 75,840,203.40 is: 113,778,371.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,685,720.20 : 235,065,905.10 = 75,840,203.40 : x
  2. Step 2: Convert to fraction form
    156,685,720.20/235,065,905.10 = 75,840,203.40/x
  3. Step 3: Cross multiply
    156,685,720.20x = 235,065,905.10 × 75,840,203.40
  4. Step 4: Simplify right side
    156,685,720.20x = 17,827,446,055,189,098
  5. Step 5: Solve for x
    x = 17,827,446,055,189,098/156,685,720.20
  6. Step 6: Final answer
    x = 113,778,371.33

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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.