Home / 77,668,622.48-107,184,971.38-42,388,690.41

Finding the Fourth Proportional to 77,668,622.48, 107,184,971.38 and 42,388,690.41

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Solution

The fourth proportional to 77,668,622.48, 107,184,971.38 and 42,388,690.41 is: 58,497,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,668,622.48 : 107,184,971.38 = 42,388,690.41 : x
  2. Step 2: Convert to fraction form
    77,668,622.48/107,184,971.38 = 42,388,690.41/x
  3. Step 3: Cross multiply
    77,668,622.48x = 107,184,971.38 × 42,388,690.41
  4. Step 4: Simplify right side
    77,668,622.48x = 4,543,430,568,222,851
  5. Step 5: Solve for x
    x = 4,543,430,568,222,851/77,668,622.48
  6. Step 6: Final answer
    x = 58,497,632.93

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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.