Home / 258,973,728.40-388,460,592.60-247,029,792.40

Finding the Fourth Proportional to 258,973,728.40, 388,460,592.60 and 247,029,792.40

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Solution

The fourth proportional to 258,973,728.40, 388,460,592.60 and 247,029,792.40 is: 370,544,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,973,728.40 : 388,460,592.60 = 247,029,792.40 : x
  2. Step 2: Convert to fraction form
    258,973,728.40/388,460,592.60 = 247,029,792.40/x
  3. Step 3: Cross multiply
    258,973,728.40x = 388,460,592.60 × 247,029,792.40
  4. Step 4: Simplify right side
    258,973,728.40x = 95,961,339,545,558,992
  5. Step 5: Solve for x
    x = 95,961,339,545,558,992/258,973,728.40
  6. Step 6: Final answer
    x = 370,544,688.60

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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.