Home / 651,761,406.15-899,435,419.43-354,401,517.51

Finding the Fourth Proportional to 651,761,406.15, 899,435,419.43 and 354,401,517.51

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Solution

The fourth proportional to 651,761,406.15, 899,435,419.43 and 354,401,517.51 is: 489,076,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,761,406.15 : 899,435,419.43 = 354,401,517.51 : x
  2. Step 2: Convert to fraction form
    651,761,406.15/899,435,419.43 = 354,401,517.51/x
  3. Step 3: Cross multiply
    651,761,406.15x = 899,435,419.43 × 354,401,517.51
  4. Step 4: Simplify right side
    651,761,406.15x = 318,761,277,548,235,328
  5. Step 5: Solve for x
    x = 318,761,277,548,235,328/651,761,406.15
  6. Step 6: Final answer
    x = 489,076,638.38

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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.