Home / 403,546,916.40-605,320,374.60-305,974,348.80

Finding the Fourth Proportional to 403,546,916.40, 605,320,374.60 and 305,974,348.80

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Solution

The fourth proportional to 403,546,916.40, 605,320,374.60 and 305,974,348.80 is: 458,961,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,546,916.40 : 605,320,374.60 = 305,974,348.80 : x
  2. Step 2: Convert to fraction form
    403,546,916.40/605,320,374.60 = 305,974,348.80/x
  3. Step 3: Cross multiply
    403,546,916.40x = 605,320,374.60 × 305,974,348.80
  4. Step 4: Simplify right side
    403,546,916.40x = 185,212,507,433,607,072
  5. Step 5: Solve for x
    x = 185,212,507,433,607,072/403,546,916.40
  6. Step 6: Final answer
    x = 458,961,523.20

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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.