Home / 258,975,350.40-388,463,025.60-201,154,569.60

Finding the Fourth Proportional to 258,975,350.40, 388,463,025.60 and 201,154,569.60

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Solution

The fourth proportional to 258,975,350.40, 388,463,025.60 and 201,154,569.60 is: 301,731,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,975,350.40 : 388,463,025.60 = 201,154,569.60 : x
  2. Step 2: Convert to fraction form
    258,975,350.40/388,463,025.60 = 201,154,569.60/x
  3. Step 3: Cross multiply
    258,975,350.40x = 388,463,025.60 × 201,154,569.60
  4. Step 4: Simplify right side
    258,975,350.40x = 78,141,112,720,081,792
  5. Step 5: Solve for x
    x = 78,141,112,720,081,792/258,975,350.40
  6. Step 6: Final answer
    x = 301,731,854.40

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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.