Home / 387,084,977.40-579,831,203.70-195,716,580.60

Finding the Fourth Proportional to 387,084,977.40, 579,831,203.70 and 195,716,580.60

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Solution

The fourth proportional to 387,084,977.40, 579,831,203.70 and 195,716,580.60 is: 293,172,267.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,084,977.40 : 579,831,203.70 = 195,716,580.60 : x
  2. Step 2: Convert to fraction form
    387,084,977.40/579,831,203.70 = 195,716,580.60/x
  3. Step 3: Cross multiply
    387,084,977.40x = 579,831,203.70 × 195,716,580.60
  4. Step 4: Simplify right side
    387,084,977.40x = 113,482,580,513,346,080
  5. Step 5: Solve for x
    x = 113,482,580,513,346,080/387,084,977.40
  6. Step 6: Final answer
    x = 293,172,267.43

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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.