Home / 209,636,634.48-289,299,703.32-121,582,824

Finding the Fourth Proportional to 209,636,634.48, 289,299,703.32 and 121,582,824

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Solution

The fourth proportional to 209,636,634.48, 289,299,703.32 and 121,582,824 is: 167,784,962.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,636,634.48 : 289,299,703.32 = 121,582,824 : x
  2. Step 2: Convert to fraction form
    209,636,634.48/289,299,703.32 = 121,582,824/x
  3. Step 3: Cross multiply
    209,636,634.48x = 289,299,703.32 × 121,582,824
  4. Step 4: Simplify right side
    209,636,634.48x = 35,173,874,912,007,776
  5. Step 5: Solve for x
    x = 35,173,874,912,007,776/209,636,634.48
  6. Step 6: Final answer
    x = 167,784,962.77

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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.