Home / 257,619,261.60-386,640,399.60-255,603,722.40

Finding the Fourth Proportional to 257,619,261.60, 386,640,399.60 and 255,603,722.40

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Solution

The fourth proportional to 257,619,261.60, 386,640,399.60 and 255,603,722.40 is: 383,615,436.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,619,261.60 : 386,640,399.60 = 255,603,722.40 : x
  2. Step 2: Convert to fraction form
    257,619,261.60/386,640,399.60 = 255,603,722.40/x
  3. Step 3: Cross multiply
    257,619,261.60x = 386,640,399.60 × 255,603,722.40
  4. Step 4: Simplify right side
    257,619,261.60x = 98,826,725,367,983,472
  5. Step 5: Solve for x
    x = 98,826,725,367,983,472/257,619,261.60
  6. Step 6: Final answer
    x = 383,615,436.03

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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.