Home / 717,502,055.82-990,152,849.43-387,477,194.82

Finding the Fourth Proportional to 717,502,055.82, 990,152,849.43 and 387,477,194.82

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Solution

The fourth proportional to 717,502,055.82, 990,152,849.43 and 387,477,194.82 is: 534,718,535.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,502,055.82 : 990,152,849.43 = 387,477,194.82 : x
  2. Step 2: Convert to fraction form
    717,502,055.82/990,152,849.43 = 387,477,194.82/x
  3. Step 3: Cross multiply
    717,502,055.82x = 990,152,849.43 × 387,477,194.82
  4. Step 4: Simplify right side
    717,502,055.82x = 383,661,648,540,166,208
  5. Step 5: Solve for x
    x = 383,661,648,540,166,208/717,502,055.82
  6. Step 6: Final answer
    x = 534,718,535.55

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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.