Home / 209,422,827.16-288,999,975.60-115,345,734.82

Finding the Fourth Proportional to 209,422,827.16, 288,999,975.60 and 115,345,734.82

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Solution

The fourth proportional to 209,422,827.16, 288,999,975.60 and 115,345,734.82 is: 159,175,172.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,422,827.16 : 288,999,975.60 = 115,345,734.82 : x
  2. Step 2: Convert to fraction form
    209,422,827.16/288,999,975.60 = 115,345,734.82/x
  3. Step 3: Cross multiply
    209,422,827.16x = 288,999,975.60 × 115,345,734.82
  4. Step 4: Simplify right side
    209,422,827.16x = 33,334,914,547,821,572
  5. Step 5: Solve for x
    x = 33,334,914,547,821,572/209,422,827.16
  6. Step 6: Final answer
    x = 159,175,172.07

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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.