Home / 355,038,465.29-489,953,745.90-198,405,572.45

Finding the Fourth Proportional to 355,038,465.29, 489,953,745.90 and 198,405,572.45

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Solution

The fourth proportional to 355,038,465.29, 489,953,745.90 and 198,405,572.45 is: 273,800,060.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,038,465.29 : 489,953,745.90 = 198,405,572.45 : x
  2. Step 2: Convert to fraction form
    355,038,465.29/489,953,745.90 = 198,405,572.45/x
  3. Step 3: Cross multiply
    355,038,465.29x = 489,953,745.90 × 198,405,572.45
  4. Step 4: Simplify right side
    355,038,465.29x = 97,209,553,426,861,568
  5. Step 5: Solve for x
    x = 97,209,553,426,861,568/355,038,465.29
  6. Step 6: Final answer
    x = 273,800,060.93

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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.