Home / 478,491,040.80-660,318,224.04-258,474,466.80

Finding the Fourth Proportional to 478,491,040.80, 660,318,224.04 and 258,474,466.80

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Solution

The fourth proportional to 478,491,040.80, 660,318,224.04 and 258,474,466.80 is: 356,695,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,491,040.80 : 660,318,224.04 = 258,474,466.80 : x
  2. Step 2: Convert to fraction form
    478,491,040.80/660,318,224.04 = 258,474,466.80/x
  3. Step 3: Cross multiply
    478,491,040.80x = 660,318,224.04 × 258,474,466.80
  4. Step 4: Simplify right side
    478,491,040.80x = 170,675,400,877,061,952
  5. Step 5: Solve for x
    x = 170,675,400,877,061,952/478,491,040.80
  6. Step 6: Final answer
    x = 356,695,081.67

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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.