Home / 1,272,771,836.55-1,756,578,039.94-770,965,896.54

Finding the Fourth Proportional to 1,272,771,836.55, 1,756,578,039.94 and 770,965,896.54

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Solution

The fourth proportional to 1,272,771,836.55, 1,756,578,039.94 and 770,965,896.54 is: 1,064,025,557.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,771,836.55 : 1,756,578,039.94 = 770,965,896.54 : x
  2. Step 2: Convert to fraction form
    1,272,771,836.55/1,756,578,039.94 = 770,965,896.54/x
  3. Step 3: Cross multiply
    1,272,771,836.55x = 1,756,578,039.94 × 770,965,896.54
  4. Step 4: Simplify right side
    1,272,771,836.55x = 1,354,261,763,402,535,424
  5. Step 5: Solve for x
    x = 1,354,261,763,402,535,424/1,272,771,836.55
  6. Step 6: Final answer
    x = 1,064,025,557.85

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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.