Home / 139,119,046.76-208,685,281.23-45,743,950.90

Finding the Fourth Proportional to 139,119,046.76, 208,685,281.23 and 45,743,950.90

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Solution

The fourth proportional to 139,119,046.76, 208,685,281.23 and 45,743,950.90 is: 68,618,133.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,119,046.76 : 208,685,281.23 = 45,743,950.90 : x
  2. Step 2: Convert to fraction form
    139,119,046.76/208,685,281.23 = 45,743,950.90/x
  3. Step 3: Cross multiply
    139,119,046.76x = 208,685,281.23 × 45,743,950.90
  4. Step 4: Simplify right side
    139,119,046.76x = 9,546,089,258,398,250
  5. Step 5: Solve for x
    x = 9,546,089,258,398,250/139,119,046.76
  6. Step 6: Final answer
    x = 68,618,133.03

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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.