Home / 76,437,518.72-105,493,271.88-43,408,377.44

Finding the Fourth Proportional to 76,437,518.72, 105,493,271.88 and 43,408,377.44

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Solution

The fourth proportional to 76,437,518.72, 105,493,271.88 and 43,408,377.44 is: 59,908,953.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,437,518.72 : 105,493,271.88 = 43,408,377.44 : x
  2. Step 2: Convert to fraction form
    76,437,518.72/105,493,271.88 = 43,408,377.44/x
  3. Step 3: Cross multiply
    76,437,518.72x = 105,493,271.88 × 43,408,377.44
  4. Step 4: Simplify right side
    76,437,518.72x = 4,579,291,763,147,578
  5. Step 5: Solve for x
    x = 4,579,291,763,147,578/76,437,518.72
  6. Step 6: Final answer
    x = 59,908,953.61

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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.