Home / 278,685,774.98-384,229,358.44-228,264,243.59

Finding the Fourth Proportional to 278,685,774.98, 384,229,358.44 and 228,264,243.59

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Solution

The fourth proportional to 278,685,774.98, 384,229,358.44 and 228,264,243.59 is: 314,712,237.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,685,774.98 : 384,229,358.44 = 228,264,243.59 : x
  2. Step 2: Convert to fraction form
    278,685,774.98/384,229,358.44 = 228,264,243.59/x
  3. Step 3: Cross multiply
    278,685,774.98x = 384,229,358.44 × 228,264,243.59
  4. Step 4: Simplify right side
    278,685,774.98x = 87,705,823,868,236,256
  5. Step 5: Solve for x
    x = 87,705,823,868,236,256/278,685,774.98
  6. Step 6: Final answer
    x = 314,712,237.74

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1.5x scale

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.