Home / 145,689,321.96-201,048,835.86-79,608,368.52

Finding the Fourth Proportional to 145,689,321.96, 201,048,835.86 and 79,608,368.52

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Solution

The fourth proportional to 145,689,321.96, 201,048,835.86 and 79,608,368.52 is: 109,858,221.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,689,321.96 : 201,048,835.86 = 79,608,368.52 : x
  2. Step 2: Convert to fraction form
    145,689,321.96/201,048,835.86 = 79,608,368.52/x
  3. Step 3: Cross multiply
    145,689,321.96x = 201,048,835.86 × 79,608,368.52
  4. Step 4: Simplify right side
    145,689,321.96x = 16,005,169,815,659,872
  5. Step 5: Solve for x
    x = 16,005,169,815,659,872/145,689,321.96
  6. Step 6: Final answer
    x = 109,858,221.59

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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.