Home / 942,072,018.21-1,413,318,786.21-287,074,307.25

Finding the Fourth Proportional to 942,072,018.21, 1,413,318,786.21 and 287,074,307.25

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Solution

The fourth proportional to 942,072,018.21, 1,413,318,786.21 and 287,074,307.25 is: 430,675,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,072,018.21 : 1,413,318,786.21 = 287,074,307.25 : x
  2. Step 2: Convert to fraction form
    942,072,018.21/1,413,318,786.21 = 287,074,307.25/x
  3. Step 3: Cross multiply
    942,072,018.21x = 1,413,318,786.21 × 287,074,307.25
  4. Step 4: Simplify right side
    942,072,018.21x = 405,727,511,474,646,592
  5. Step 5: Solve for x
    x = 405,727,511,474,646,592/942,072,018.21
  6. Step 6: Final answer
    x = 430,675,684.70

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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.