Home / 77,192,629.49-106,525,829.25-42,385,319.93

Finding the Fourth Proportional to 77,192,629.49, 106,525,829.25 and 42,385,319.93

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Solution

The fourth proportional to 77,192,629.49, 106,525,829.25 and 42,385,319.93 is: 58,491,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,192,629.49 : 106,525,829.25 = 42,385,319.93 : x
  2. Step 2: Convert to fraction form
    77,192,629.49/106,525,829.25 = 42,385,319.93/x
  3. Step 3: Cross multiply
    77,192,629.49x = 106,525,829.25 × 42,385,319.93
  4. Step 4: Simplify right side
    77,192,629.49x = 4,515,131,353,037,172
  5. Step 5: Solve for x
    x = 4,515,131,353,037,172/77,192,629.49
  6. Step 6: Final answer
    x = 58,491,741.80

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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.