Home / 209,152,943.52-288,691,834.32-139,538,152.32

Finding the Fourth Proportional to 209,152,943.52, 288,691,834.32 and 139,538,152.32

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Solution

The fourth proportional to 209,152,943.52, 288,691,834.32 and 139,538,152.32 is: 192,603,194.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,152,943.52 : 288,691,834.32 = 139,538,152.32 : x
  2. Step 2: Convert to fraction form
    209,152,943.52/288,691,834.32 = 139,538,152.32/x
  3. Step 3: Cross multiply
    209,152,943.52x = 288,691,834.32 × 139,538,152.32
  4. Step 4: Simplify right side
    209,152,943.52x = 40,283,525,150,884,360
  5. Step 5: Solve for x
    x = 40,283,525,150,884,360/209,152,943.52
  6. Step 6: Final answer
    x = 192,603,194.93

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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.