Home / 145,749,687.86-201,134,578.53-79,670,447.57

Finding the Fourth Proportional to 145,749,687.86, 201,134,578.53 and 79,670,447.57

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Solution

The fourth proportional to 145,749,687.86, 201,134,578.53 and 79,670,447.57 is: 109,945,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,749,687.86 : 201,134,578.53 = 79,670,447.57 : x
  2. Step 2: Convert to fraction form
    145,749,687.86/201,134,578.53 = 79,670,447.57/x
  3. Step 3: Cross multiply
    145,749,687.86x = 201,134,578.53 × 79,670,447.57
  4. Step 4: Simplify right side
    145,749,687.86x = 16,024,481,892,282,740
  5. Step 5: Solve for x
    x = 16,024,481,892,282,740/145,749,687.86
  6. Step 6: Final answer
    x = 109,945,222.72

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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.