Home / 82,985,452.80-124,478,179.20-78,733,924.80

Finding the Fourth Proportional to 82,985,452.80, 124,478,179.20 and 78,733,924.80

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Solution

The fourth proportional to 82,985,452.80, 124,478,179.20 and 78,733,924.80 is: 118,100,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,985,452.80 : 124,478,179.20 = 78,733,924.80 : x
  2. Step 2: Convert to fraction form
    82,985,452.80/124,478,179.20 = 78,733,924.80/x
  3. Step 3: Cross multiply
    82,985,452.80x = 124,478,179.20 × 78,733,924.80
  4. Step 4: Simplify right side
    82,985,452.80x = 9,800,655,600,373,724
  5. Step 5: Solve for x
    x = 9,800,655,600,373,724/82,985,452.80
  6. Step 6: Final answer
    x = 118,100,887.20

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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.