Home / 355,038,462.30-489,953,741.76-198,405,569.46

Finding the Fourth Proportional to 355,038,462.30, 489,953,741.76 and 198,405,569.46

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Solution

The fourth proportional to 355,038,462.30, 489,953,741.76 and 198,405,569.46 is: 273,800,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,038,462.30 : 489,953,741.76 = 198,405,569.46 : x
  2. Step 2: Convert to fraction form
    355,038,462.30/489,953,741.76 = 198,405,569.46/x
  3. Step 3: Cross multiply
    355,038,462.30x = 489,953,741.76 × 198,405,569.46
  4. Step 4: Simplify right side
    355,038,462.30x = 97,209,551,142,950,592
  5. Step 5: Solve for x
    x = 97,209,551,142,950,592/355,038,462.30
  6. Step 6: Final answer
    x = 273,800,056.80

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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.