Home / 67,220,105.60-100,830,158.40-21,786,492.80

Finding the Fourth Proportional to 67,220,105.60, 100,830,158.40 and 21,786,492.80

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Solution

The fourth proportional to 67,220,105.60, 100,830,158.40 and 21,786,492.80 is: 32,679,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,220,105.60 : 100,830,158.40 = 21,786,492.80 : x
  2. Step 2: Convert to fraction form
    67,220,105.60/100,830,158.40 = 21,786,492.80/x
  3. Step 3: Cross multiply
    67,220,105.60x = 100,830,158.40 × 21,786,492.80
  4. Step 4: Simplify right side
    67,220,105.60x = 2,196,735,520,004,459.75
  5. Step 5: Solve for x
    x = 2,196,735,520,004,459.75/67,220,105.60
  6. Step 6: Final answer
    x = 32,679,739.20

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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.