Home / 66,971,208.40-100,456,812.60-65,837,467.60

Finding the Fourth Proportional to 66,971,208.40, 100,456,812.60 and 65,837,467.60

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Solution

The fourth proportional to 66,971,208.40, 100,456,812.60 and 65,837,467.60 is: 98,756,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,971,208.40 : 100,456,812.60 = 65,837,467.60 : x
  2. Step 2: Convert to fraction form
    66,971,208.40/100,456,812.60 = 65,837,467.60/x
  3. Step 3: Cross multiply
    66,971,208.40x = 100,456,812.60 × 65,837,467.60
  4. Step 4: Simplify right side
    66,971,208.40x = 6,613,822,144,751,772
  5. Step 5: Solve for x
    x = 6,613,822,144,751,772/66,971,208.40
  6. Step 6: Final answer
    x = 98,756,201.40

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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.