Home / 140,734,544.21-210,917,964.79-78,483,374.35

Finding the Fourth Proportional to 140,734,544.21, 210,917,964.79 and 78,483,374.35

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Solution

The fourth proportional to 140,734,544.21, 210,917,964.79 and 78,483,374.35 is: 117,622,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,734,544.21 : 210,917,964.79 = 78,483,374.35 : x
  2. Step 2: Convert to fraction form
    140,734,544.21/210,917,964.79 = 78,483,374.35/x
  3. Step 3: Cross multiply
    140,734,544.21x = 210,917,964.79 × 78,483,374.35
  4. Step 4: Simplify right side
    140,734,544.21x = 16,553,553,587,324,496
  5. Step 5: Solve for x
    x = 16,553,553,587,324,496/140,734,544.21
  6. Step 6: Final answer
    x = 117,622,533.12

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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.