Home / 100,969,416.36-139,337,788.56-54,559,668.78

Finding the Fourth Proportional to 100,969,416.36, 139,337,788.56 and 54,559,668.78

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Solution

The fourth proportional to 100,969,416.36, 139,337,788.56 and 54,559,668.78 is: 75,292,339.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,969,416.36 : 139,337,788.56 = 54,559,668.78 : x
  2. Step 2: Convert to fraction form
    100,969,416.36/139,337,788.56 = 54,559,668.78/x
  3. Step 3: Cross multiply
    100,969,416.36x = 139,337,788.56 × 54,559,668.78
  4. Step 4: Simplify right side
    100,969,416.36x = 7,602,223,592,371,273
  5. Step 5: Solve for x
    x = 7,602,223,592,371,273/100,969,416.36
  6. Step 6: Final answer
    x = 75,292,339.67

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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.