Home / 285,401,108.80-428,101,663.20-264,993,774.40

Finding the Fourth Proportional to 285,401,108.80, 428,101,663.20 and 264,993,774.40

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Solution

The fourth proportional to 285,401,108.80, 428,101,663.20 and 264,993,774.40 is: 397,490,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,401,108.80 : 428,101,663.20 = 264,993,774.40 : x
  2. Step 2: Convert to fraction form
    285,401,108.80/428,101,663.20 = 264,993,774.40/x
  3. Step 3: Cross multiply
    285,401,108.80x = 428,101,663.20 × 264,993,774.40
  4. Step 4: Simplify right side
    285,401,108.80x = 113,444,275,558,285,584
  5. Step 5: Solve for x
    x = 113,444,275,558,285,584/285,401,108.80
  6. Step 6: Final answer
    x = 397,490,661.60

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1.5x scale

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.