Home / 156,685,704.20-235,065,881.10-75,840,187.40

Finding the Fourth Proportional to 156,685,704.20, 235,065,881.10 and 75,840,187.40

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Solution

The fourth proportional to 156,685,704.20, 235,065,881.10 and 75,840,187.40 is: 113,778,347.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,685,704.20 : 235,065,881.10 = 75,840,187.40 : x
  2. Step 2: Convert to fraction form
    156,685,704.20/235,065,881.10 = 75,840,187.40/x
  3. Step 3: Cross multiply
    156,685,704.20x = 235,065,881.10 × 75,840,187.40
  4. Step 4: Simplify right side
    156,685,704.20x = 17,827,440,473,970,120
  5. Step 5: Solve for x
    x = 17,827,440,473,970,120/156,685,704.20
  6. Step 6: Final answer
    x = 113,778,347.33

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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.