Home / 65,378,830.68-90,229,163.50-48,830,237.87

Finding the Fourth Proportional to 65,378,830.68, 90,229,163.50 and 48,830,237.87

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Solution

The fourth proportional to 65,378,830.68, 90,229,163.50 and 48,830,237.87 is: 67,390,491.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,378,830.68 : 90,229,163.50 = 48,830,237.87 : x
  2. Step 2: Convert to fraction form
    65,378,830.68/90,229,163.50 = 48,830,237.87/x
  3. Step 3: Cross multiply
    65,378,830.68x = 90,229,163.50 × 48,830,237.87
  4. Step 4: Simplify right side
    65,378,830.68x = 4,405,911,515,942,900.50
  5. Step 5: Solve for x
    x = 4,405,911,515,942,900.50/65,378,830.68
  6. Step 6: Final answer
    x = 67,390,491.24

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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.