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Finding the Fourth Proportional to 289,701,603.60, 434,552,405.40 and 174,626,912.40

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Solution

The fourth proportional to 289,701,603.60, 434,552,405.40 and 174,626,912.40 is: 261,940,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,701,603.60 : 434,552,405.40 = 174,626,912.40 : x
  2. Step 2: Convert to fraction form
    289,701,603.60/434,552,405.40 = 174,626,912.40/x
  3. Step 3: Cross multiply
    289,701,603.60x = 434,552,405.40 × 174,626,912.40
  4. Step 4: Simplify right side
    289,701,603.60x = 75,884,544,830,995,088
  5. Step 5: Solve for x
    x = 75,884,544,830,995,088/289,701,603.60
  6. Step 6: Final answer
    x = 261,940,368.60

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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.