Home / 392,029,022.07-540,983,477.34-213,409,197

Finding the Fourth Proportional to 392,029,022.07, 540,983,477.34 and 213,409,197

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Solution

The fourth proportional to 392,029,022.07, 540,983,477.34 and 213,409,197 is: 294,495,669.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,029,022.07 : 540,983,477.34 = 213,409,197 : x
  2. Step 2: Convert to fraction form
    392,029,022.07/540,983,477.34 = 213,409,197/x
  3. Step 3: Cross multiply
    392,029,022.07x = 540,983,477.34 × 213,409,197
  4. Step 4: Simplify right side
    392,029,022.07x = 115,450,849,489,397,104
  5. Step 5: Solve for x
    x = 115,450,849,489,397,104/392,029,022.07
  6. Step 6: Final answer
    x = 294,495,669.94

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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.