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Finding the Fourth Proportional to 290,441,645.40, 435,662,468.10 and 254,609,837.40

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Solution

The fourth proportional to 290,441,645.40, 435,662,468.10 and 254,609,837.40 is: 381,914,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,441,645.40 : 435,662,468.10 = 254,609,837.40 : x
  2. Step 2: Convert to fraction form
    290,441,645.40/435,662,468.10 = 254,609,837.40/x
  3. Step 3: Cross multiply
    290,441,645.40x = 435,662,468.10 × 254,609,837.40
  4. Step 4: Simplify right side
    290,441,645.40x = 110,923,950,164,223,696
  5. Step 5: Solve for x
    x = 110,923,950,164,223,696/290,441,645.40
  6. Step 6: Final answer
    x = 381,914,756.10

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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.