Home / 290,373,465.98-400,710,315.66-158,215,556.45

Finding the Fourth Proportional to 290,373,465.98, 400,710,315.66 and 158,215,556.45

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Solution

The fourth proportional to 290,373,465.98, 400,710,315.66 and 158,215,556.45 is: 218,334,706.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,373,465.98 : 400,710,315.66 = 158,215,556.45 : x
  2. Step 2: Convert to fraction form
    290,373,465.98/400,710,315.66 = 158,215,556.45/x
  3. Step 3: Cross multiply
    290,373,465.98x = 400,710,315.66 × 158,215,556.45
  4. Step 4: Simplify right side
    290,373,465.98x = 63,398,605,567,402,048
  5. Step 5: Solve for x
    x = 63,398,605,567,402,048/290,373,465.98
  6. Step 6: Final answer
    x = 218,334,706.83

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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.