Home / 258,731,195.20-388,096,792.80-105,487,230.40

Finding the Fourth Proportional to 258,731,195.20, 388,096,792.80 and 105,487,230.40

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Solution

The fourth proportional to 258,731,195.20, 388,096,792.80 and 105,487,230.40 is: 158,230,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,731,195.20 : 388,096,792.80 = 105,487,230.40 : x
  2. Step 2: Convert to fraction form
    258,731,195.20/388,096,792.80 = 105,487,230.40/x
  3. Step 3: Cross multiply
    258,731,195.20x = 388,096,792.80 × 105,487,230.40
  4. Step 4: Simplify right side
    258,731,195.20x = 40,939,255,799,594,664
  5. Step 5: Solve for x
    x = 40,939,255,799,594,664/258,731,195.20
  6. Step 6: Final answer
    x = 158,230,845.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.