Home / 209,886,113.48-289,643,837.97-115,800,254.46

Finding the Fourth Proportional to 209,886,113.48, 289,643,837.97 and 115,800,254.46

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Solution

The fourth proportional to 209,886,113.48, 289,643,837.97 and 115,800,254.46 is: 159,804,903.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,886,113.48 : 289,643,837.97 = 115,800,254.46 : x
  2. Step 2: Convert to fraction form
    209,886,113.48/289,643,837.97 = 115,800,254.46/x
  3. Step 3: Cross multiply
    209,886,113.48x = 289,643,837.97 × 115,800,254.46
  4. Step 4: Simplify right side
    209,886,113.48x = 33,540,830,140,131,260
  5. Step 5: Solve for x
    x = 33,540,830,140,131,260/209,886,113.48
  6. Step 6: Final answer
    x = 159,804,903.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.