Home / 140,734,429.95-210,917,794.07-78,483,260.09

Finding the Fourth Proportional to 140,734,429.95, 210,917,794.07 and 78,483,260.09

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Solution

The fourth proportional to 140,734,429.95, 210,917,794.07 and 78,483,260.09 is: 117,622,362.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,734,429.95 : 210,917,794.07 = 78,483,260.09 : x
  2. Step 2: Convert to fraction form
    140,734,429.95/210,917,794.07 = 78,483,260.09/x
  3. Step 3: Cross multiply
    140,734,429.95x = 210,917,794.07 × 78,483,260.09
  4. Step 4: Simplify right side
    140,734,429.95x = 16,553,516,088,157,862
  5. Step 5: Solve for x
    x = 16,553,516,088,157,862/140,734,429.95
  6. Step 6: Final answer
    x = 117,622,362.16

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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.