Home / 387,668,355.96-534,988,612.76-211,456,298.48

Finding the Fourth Proportional to 387,668,355.96, 534,988,612.76 and 211,456,298.48

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Solution

The fourth proportional to 387,668,355.96, 534,988,612.76 and 211,456,298.48 is: 291,813,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,668,355.96 : 534,988,612.76 = 211,456,298.48 : x
  2. Step 2: Convert to fraction form
    387,668,355.96/534,988,612.76 = 211,456,298.48/x
  3. Step 3: Cross multiply
    387,668,355.96x = 534,988,612.76 × 211,456,298.48
  4. Step 4: Simplify right side
    387,668,355.96x = 113,126,711,783,179,696
  5. Step 5: Solve for x
    x = 113,126,711,783,179,696/387,668,355.96
  6. Step 6: Final answer
    x = 291,813,118.21

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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.