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Finding the Fourth Proportional to 209,957,300.80, 314,935,951.20 and 197,202,716.80

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Solution

The fourth proportional to 209,957,300.80, 314,935,951.20 and 197,202,716.80 is: 295,804,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,957,300.80 : 314,935,951.20 = 197,202,716.80 : x
  2. Step 2: Convert to fraction form
    209,957,300.80/314,935,951.20 = 197,202,716.80/x
  3. Step 3: Cross multiply
    209,957,300.80x = 314,935,951.20 × 197,202,716.80
  4. Step 4: Simplify right side
    209,957,300.80x = 62,106,225,194,632,224
  5. Step 5: Solve for x
    x = 62,106,225,194,632,224/209,957,300.80
  6. Step 6: Final answer
    x = 295,804,075.20

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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.