Home / 257,040,686.76-354,706,199.04-139,563,328.20

Finding the Fourth Proportional to 257,040,686.76, 354,706,199.04 and 139,563,328.20

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Solution

The fourth proportional to 257,040,686.76, 354,706,199.04 and 139,563,328.20 is: 192,591,991.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,040,686.76 : 354,706,199.04 = 139,563,328.20 : x
  2. Step 2: Convert to fraction form
    257,040,686.76/354,706,199.04 = 139,563,328.20/x
  3. Step 3: Cross multiply
    257,040,686.76x = 354,706,199.04 × 139,563,328.20
  4. Step 4: Simplify right side
    257,040,686.76x = 49,503,977,671,194,040
  5. Step 5: Solve for x
    x = 49,503,977,671,194,040/257,040,686.76
  6. Step 6: Final answer
    x = 192,591,991.16

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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.