Home / 81,760,256.40-122,640,384.60-63,620,403.60

Finding the Fourth Proportional to 81,760,256.40, 122,640,384.60 and 63,620,403.60

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Solution

The fourth proportional to 81,760,256.40, 122,640,384.60 and 63,620,403.60 is: 95,430,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,760,256.40 : 122,640,384.60 = 63,620,403.60 : x
  2. Step 2: Convert to fraction form
    81,760,256.40/122,640,384.60 = 63,620,403.60/x
  3. Step 3: Cross multiply
    81,760,256.40x = 122,640,384.60 × 63,620,403.60
  4. Step 4: Simplify right side
    81,760,256.40x = 7,802,430,765,911,224
  5. Step 5: Solve for x
    x = 7,802,430,765,911,224/81,760,256.40
  6. Step 6: Final answer
    x = 95,430,605.40

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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.