Home / 139,313,988.42-208,516,260.57-102,416,111.07

Finding the Fourth Proportional to 139,313,988.42, 208,516,260.57 and 102,416,111.07

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Solution

The fourth proportional to 139,313,988.42, 208,516,260.57 and 102,416,111.07 is: 153,289,879.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,313,988.42 : 208,516,260.57 = 102,416,111.07 : x
  2. Step 2: Convert to fraction form
    139,313,988.42/208,516,260.57 = 102,416,111.07/x
  3. Step 3: Cross multiply
    139,313,988.42x = 208,516,260.57 × 102,416,111.07
  4. Step 4: Simplify right side
    139,313,988.42x = 21,355,424,502,438,180
  5. Step 5: Solve for x
    x = 21,355,424,502,438,180/139,313,988.42
  6. Step 6: Final answer
    x = 153,289,879.53

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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.