Home / 67,221,197.40-100,831,796.10-65,728,205.40

Finding the Fourth Proportional to 67,221,197.40, 100,831,796.10 and 65,728,205.40

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Solution

The fourth proportional to 67,221,197.40, 100,831,796.10 and 65,728,205.40 is: 98,592,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,221,197.40 : 100,831,796.10 = 65,728,205.40 : x
  2. Step 2: Convert to fraction form
    67,221,197.40/100,831,796.10 = 65,728,205.40/x
  3. Step 3: Cross multiply
    67,221,197.40x = 100,831,796.10 × 65,728,205.40
  4. Step 4: Simplify right side
    67,221,197.40x = 6,627,493,004,911,718
  5. Step 5: Solve for x
    x = 6,627,493,004,911,718/67,221,197.40
  6. Step 6: Final answer
    x = 98,592,308.10

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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.