Home / 209,824,111.51-289,557,552.81-115,736,148.43

Finding the Fourth Proportional to 209,824,111.51, 289,557,552.81 and 115,736,148.43

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Solution

The fourth proportional to 209,824,111.51, 289,557,552.81 and 115,736,148.43 is: 159,716,038.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,824,111.51 : 289,557,552.81 = 115,736,148.43 : x
  2. Step 2: Convert to fraction form
    209,824,111.51/289,557,552.81 = 115,736,148.43/x
  3. Step 3: Cross multiply
    209,824,111.51x = 289,557,552.81 × 115,736,148.43
  4. Step 4: Simplify right side
    209,824,111.51x = 33,512,275,911,045,724
  5. Step 5: Solve for x
    x = 33,512,275,911,045,724/209,824,111.51
  6. Step 6: Final answer
    x = 159,716,038.69

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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.