Home / 209,939,928.36-289,717,224.42-117,120,436.52

Finding the Fourth Proportional to 209,939,928.36, 289,717,224.42 and 117,120,436.52

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Solution

The fourth proportional to 209,939,928.36, 289,717,224.42 and 117,120,436.52 is: 161,626,271.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,939,928.36 : 289,717,224.42 = 117,120,436.52 : x
  2. Step 2: Convert to fraction form
    209,939,928.36/289,717,224.42 = 117,120,436.52/x
  3. Step 3: Cross multiply
    209,939,928.36x = 289,717,224.42 × 117,120,436.52
  4. Step 4: Simplify right side
    209,939,928.36x = 33,931,807,791,433,204
  5. Step 5: Solve for x
    x = 33,931,807,791,433,204/209,939,928.36
  6. Step 6: Final answer
    x = 161,626,271.17

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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.