Home / 209,590,563.56-289,236,952.69-115,508,098.06

Finding the Fourth Proportional to 209,590,563.56, 289,236,952.69 and 115,508,098.06

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Solution

The fourth proportional to 209,590,563.56, 289,236,952.69 and 115,508,098.06 is: 159,402,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,590,563.56 : 289,236,952.69 = 115,508,098.06 : x
  2. Step 2: Convert to fraction form
    209,590,563.56/289,236,952.69 = 115,508,098.06/x
  3. Step 3: Cross multiply
    209,590,563.56x = 289,236,952.69 × 115,508,098.06
  4. Step 4: Simplify right side
    209,590,563.56x = 33,409,210,292,880,240
  5. Step 5: Solve for x
    x = 33,409,210,292,880,240/209,590,563.56
  6. Step 6: Final answer
    x = 159,402,263.76

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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.