Home / 387,085,220.40-579,831,568.20-195,716,823.60

Finding the Fourth Proportional to 387,085,220.40, 579,831,568.20 and 195,716,823.60

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Solution

The fourth proportional to 387,085,220.40, 579,831,568.20 and 195,716,823.60 is: 293,172,631.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,085,220.40 : 579,831,568.20 = 195,716,823.60 : x
  2. Step 2: Convert to fraction form
    387,085,220.40/579,831,568.20 = 195,716,823.60/x
  3. Step 3: Cross multiply
    387,085,220.40x = 579,831,568.20 × 195,716,823.60
  4. Step 4: Simplify right side
    387,085,220.40x = 113,482,792,751,110,768
  5. Step 5: Solve for x
    x = 113,482,792,751,110,768/387,085,220.40
  6. Step 6: Final answer
    x = 293,172,631.69

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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.