Home / 152,393,405.28-210,302,739.24-82,778,840.61

Finding the Fourth Proportional to 152,393,405.28, 210,302,739.24 and 82,778,840.61

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Solution

The fourth proportional to 152,393,405.28, 210,302,739.24 and 82,778,840.61 is: 114,234,713.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,393,405.28 : 210,302,739.24 = 82,778,840.61 : x
  2. Step 2: Convert to fraction form
    152,393,405.28/210,302,739.24 = 82,778,840.61/x
  3. Step 3: Cross multiply
    152,393,405.28x = 210,302,739.24 × 82,778,840.61
  4. Step 4: Simplify right side
    152,393,405.28x = 17,408,616,931,394,354
  5. Step 5: Solve for x
    x = 17,408,616,931,394,354/152,393,405.28
  6. Step 6: Final answer
    x = 114,234,713.11

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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.