Home / 439,977,702.60-660,470,438.70-258,327,232.20

Finding the Fourth Proportional to 439,977,702.60, 660,470,438.70 and 258,327,232.20

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Solution

The fourth proportional to 439,977,702.60, 660,470,438.70 and 258,327,232.20 is: 387,786,697.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,977,702.60 : 660,470,438.70 = 258,327,232.20 : x
  2. Step 2: Convert to fraction form
    439,977,702.60/660,470,438.70 = 258,327,232.20/x
  3. Step 3: Cross multiply
    439,977,702.60x = 660,470,438.70 × 258,327,232.20
  4. Step 4: Simplify right side
    439,977,702.60x = 170,617,500,379,290,784
  5. Step 5: Solve for x
    x = 170,617,500,379,290,784/439,977,702.60
  6. Step 6: Final answer
    x = 387,786,697.76

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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.