Home / 137,077,768.38-189,166,216.55-74,353,709.89

Finding the Fourth Proportional to 137,077,768.38, 189,166,216.55 and 74,353,709.89

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Solution

The fourth proportional to 137,077,768.38, 189,166,216.55 and 74,353,709.89 is: 102,607,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,077,768.38 : 189,166,216.55 = 74,353,709.89 : x
  2. Step 2: Convert to fraction form
    137,077,768.38/189,166,216.55 = 74,353,709.89/x
  3. Step 3: Cross multiply
    137,077,768.38x = 189,166,216.55 × 74,353,709.89
  4. Step 4: Simplify right side
    137,077,768.38x = 14,065,209,986,347,618
  5. Step 5: Solve for x
    x = 14,065,209,986,347,618/137,077,768.38
  6. Step 6: Final answer
    x = 102,607,520.92

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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.