Home / 354,520,006.40-489,319,238.40-207,889,529.60

Finding the Fourth Proportional to 354,520,006.40, 489,319,238.40 and 207,889,529.60

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Solution

The fourth proportional to 354,520,006.40, 489,319,238.40 and 207,889,529.60 is: 286,935,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,520,006.40 : 489,319,238.40 = 207,889,529.60 : x
  2. Step 2: Convert to fraction form
    354,520,006.40/489,319,238.40 = 207,889,529.60/x
  3. Step 3: Cross multiply
    354,520,006.40x = 489,319,238.40 × 207,889,529.60
  4. Step 4: Simplify right side
    354,520,006.40x = 101,724,346,295,206,256
  5. Step 5: Solve for x
    x = 101,724,346,295,206,256/354,520,006.40
  6. Step 6: Final answer
    x = 286,935,418.20

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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.