Home / 691,394,357.46-954,066,534.66-389,963,058.15

Finding the Fourth Proportional to 691,394,357.46, 954,066,534.66 and 389,963,058.15

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Solution

The fourth proportional to 691,394,357.46, 954,066,534.66 and 389,963,058.15 is: 538,116,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,394,357.46 : 954,066,534.66 = 389,963,058.15 : x
  2. Step 2: Convert to fraction form
    691,394,357.46/954,066,534.66 = 389,963,058.15/x
  3. Step 3: Cross multiply
    691,394,357.46x = 954,066,534.66 × 389,963,058.15
  4. Step 4: Simplify right side
    691,394,357.46x = 372,050,703,534,586,560
  5. Step 5: Solve for x
    x = 372,050,703,534,586,560/691,394,357.46
  6. Step 6: Final answer
    x = 538,116,488.11

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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.