Home / 392,029,023.07-540,983,478.72-213,409,198

Finding the Fourth Proportional to 392,029,023.07, 540,983,478.72 and 213,409,198

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Solution

The fourth proportional to 392,029,023.07, 540,983,478.72 and 213,409,198 is: 294,495,671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,029,023.07 : 540,983,478.72 = 213,409,198 : x
  2. Step 2: Convert to fraction form
    392,029,023.07/540,983,478.72 = 213,409,198/x
  3. Step 3: Cross multiply
    392,029,023.07x = 540,983,478.72 × 213,409,198
  4. Step 4: Simplify right side
    392,029,023.07x = 115,450,850,324,885,280
  5. Step 5: Solve for x
    x = 115,450,850,324,885,280/392,029,023.07
  6. Step 6: Final answer
    x = 294,495,671.32

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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.