Home / 139,828,245.62-209,743,031.84-42,783,798.42

Finding the Fourth Proportional to 139,828,245.62, 209,743,031.84 and 42,783,798.42

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Solution

The fourth proportional to 139,828,245.62, 209,743,031.84 and 42,783,798.42 is: 64,175,900.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,828,245.62 : 209,743,031.84 = 42,783,798.42 : x
  2. Step 2: Convert to fraction form
    139,828,245.62/209,743,031.84 = 42,783,798.42/x
  3. Step 3: Cross multiply
    139,828,245.62x = 209,743,031.84 × 42,783,798.42
  4. Step 4: Simplify right side
    139,828,245.62x = 8,973,603,594,028,283
  5. Step 5: Solve for x
    x = 8,973,603,594,028,283/139,828,245.62
  6. Step 6: Final answer
    x = 64,175,900.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.