Home / 440,120,400.30-660,180,600.45-210,537,888.30

Finding the Fourth Proportional to 440,120,400.30, 660,180,600.45 and 210,537,888.30

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Solution

The fourth proportional to 440,120,400.30, 660,180,600.45 and 210,537,888.30 is: 315,806,832.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,120,400.30 : 660,180,600.45 = 210,537,888.30 : x
  2. Step 2: Convert to fraction form
    440,120,400.30/660,180,600.45 = 210,537,888.30/x
  3. Step 3: Cross multiply
    440,120,400.30x = 660,180,600.45 × 210,537,888.30
  4. Step 4: Simplify right side
    440,120,400.30x = 138,993,029,515,369,040
  5. Step 5: Solve for x
    x = 138,993,029,515,369,040/440,120,400.30
  6. Step 6: Final answer
    x = 315,806,832.45

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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.