Home / 209,422,812.85-288,999,955.85-115,345,720.51

Finding the Fourth Proportional to 209,422,812.85, 288,999,955.85 and 115,345,720.51

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Solution

The fourth proportional to 209,422,812.85, 288,999,955.85 and 115,345,720.51 is: 159,175,152.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,422,812.85 : 288,999,955.85 = 115,345,720.51 : x
  2. Step 2: Convert to fraction form
    209,422,812.85/288,999,955.85 = 115,345,720.51/x
  3. Step 3: Cross multiply
    209,422,812.85x = 288,999,955.85 × 115,345,720.51
  4. Step 4: Simplify right side
    209,422,812.85x = 33,334,908,135,204,284
  5. Step 5: Solve for x
    x = 33,334,908,135,204,284/209,422,812.85
  6. Step 6: Final answer
    x = 159,175,152.32

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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.