Home / 156,685,689.20-235,065,858.60-75,840,172.40

Finding the Fourth Proportional to 156,685,689.20, 235,065,858.60 and 75,840,172.40

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Solution

The fourth proportional to 156,685,689.20, 235,065,858.60 and 75,840,172.40 is: 113,778,324.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,685,689.20 : 235,065,858.60 = 75,840,172.40 : x
  2. Step 2: Convert to fraction form
    156,685,689.20/235,065,858.60 = 75,840,172.40/x
  3. Step 3: Cross multiply
    156,685,689.20x = 235,065,858.60 × 75,840,172.40
  4. Step 4: Simplify right side
    156,685,689.20x = 17,827,435,241,578,024
  5. Step 5: Solve for x
    x = 17,827,435,241,578,024/156,685,689.20
  6. Step 6: Final answer
    x = 113,778,324.83

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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.