Home / 144,645,836.48-199,612,871.94-85,120,292.58

Finding the Fourth Proportional to 144,645,836.48, 199,612,871.94 and 85,120,292.58

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Solution

The fourth proportional to 144,645,836.48, 199,612,871.94 and 85,120,292.58 is: 117,466,955.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,645,836.48 : 199,612,871.94 = 85,120,292.58 : x
  2. Step 2: Convert to fraction form
    144,645,836.48/199,612,871.94 = 85,120,292.58/x
  3. Step 3: Cross multiply
    144,645,836.48x = 199,612,871.94 × 85,120,292.58
  4. Step 4: Simplify right side
    144,645,836.48x = 16,991,106,062,266,872
  5. Step 5: Solve for x
    x = 16,991,106,062,266,872/144,645,836.48
  6. Step 6: Final answer
    x = 117,466,955.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.