Home / 874,898,805.75-1,206,791,458.70-561,136,039.35

Finding the Fourth Proportional to 874,898,805.75, 1,206,791,458.70 and 561,136,039.35

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Solution

The fourth proportional to 874,898,805.75, 1,206,791,458.70 and 561,136,039.35 is: 774,002,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,898,805.75 : 1,206,791,458.70 = 561,136,039.35 : x
  2. Step 2: Convert to fraction form
    874,898,805.75/1,206,791,458.70 = 561,136,039.35/x
  3. Step 3: Cross multiply
    874,898,805.75x = 1,206,791,458.70 × 561,136,039.35
  4. Step 4: Simplify right side
    874,898,805.75x = 677,174,179,453,521,408
  5. Step 5: Solve for x
    x = 677,174,179,453,521,408/874,898,805.75
  6. Step 6: Final answer
    x = 774,002,861.82

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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.