Home / 140,734,455.62-210,917,832.53-78,483,285.72

Finding the Fourth Proportional to 140,734,455.62, 210,917,832.53 and 78,483,285.72

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Solution

The fourth proportional to 140,734,455.62, 210,917,832.53 and 78,483,285.72 is: 117,622,400.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,734,455.62 : 210,917,832.53 = 78,483,285.72 : x
  2. Step 2: Convert to fraction form
    140,734,455.62/210,917,832.53 = 78,483,285.72/x
  3. Step 3: Cross multiply
    140,734,455.62x = 210,917,832.53 × 78,483,285.72
  4. Step 4: Simplify right side
    140,734,455.62x = 16,553,524,513,502,684
  5. Step 5: Solve for x
    x = 16,553,524,513,502,684/140,734,455.62
  6. Step 6: Final answer
    x = 117,622,400.58

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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.