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Finding the Fourth Proportional to 55,491,771.60, 83,237,657.40 and 53,259,719.40

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Solution

The fourth proportional to 55,491,771.60, 83,237,657.40 and 53,259,719.40 is: 79,889,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,491,771.60 : 83,237,657.40 = 53,259,719.40 : x
  2. Step 2: Convert to fraction form
    55,491,771.60/83,237,657.40 = 53,259,719.40/x
  3. Step 3: Cross multiply
    55,491,771.60x = 83,237,657.40 × 53,259,719.40
  4. Step 4: Simplify right side
    55,491,771.60x = 4,433,214,276,637,334
  5. Step 5: Solve for x
    x = 4,433,214,276,637,334/55,491,771.60
  6. Step 6: Final answer
    x = 79,889,579.10

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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.