Home / 254,821,019.40-381,948,093.90-139,888,045.80

Finding the Fourth Proportional to 254,821,019.40, 381,948,093.90 and 139,888,045.80

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Solution

The fourth proportional to 254,821,019.40, 381,948,093.90 and 139,888,045.80 is: 209,676,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,821,019.40 : 381,948,093.90 = 139,888,045.80 : x
  2. Step 2: Convert to fraction form
    254,821,019.40/381,948,093.90 = 139,888,045.80/x
  3. Step 3: Cross multiply
    254,821,019.40x = 381,948,093.90 × 139,888,045.80
  4. Step 4: Simplify right side
    254,821,019.40x = 53,429,972,452,705,904
  5. Step 5: Solve for x
    x = 53,429,972,452,705,904/254,821,019.40
  6. Step 6: Final answer
    x = 209,676,472.45

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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.