Home / 55,415,428.60-83,123,142.90-54,659,601.40

Finding the Fourth Proportional to 55,415,428.60, 83,123,142.90 and 54,659,601.40

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Solution

The fourth proportional to 55,415,428.60, 83,123,142.90 and 54,659,601.40 is: 81,989,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,415,428.60 : 83,123,142.90 = 54,659,601.40 : x
  2. Step 2: Convert to fraction form
    55,415,428.60/83,123,142.90 = 54,659,601.40/x
  3. Step 3: Cross multiply
    55,415,428.60x = 83,123,142.90 × 54,659,601.40
  4. Step 4: Simplify right side
    55,415,428.60x = 4,543,477,858,029,240
  5. Step 5: Solve for x
    x = 4,543,477,858,029,240/55,415,428.60
  6. Step 6: Final answer
    x = 81,989,402.10

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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.