Home / 918,896,321.48-1,268,076,916.86-501,208,593.80

Finding the Fourth Proportional to 918,896,321.48, 1,268,076,916.86 and 501,208,593.80

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Solution

The fourth proportional to 918,896,321.48, 1,268,076,916.86 and 501,208,593.80 is: 691,667,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,896,321.48 : 1,268,076,916.86 = 501,208,593.80 : x
  2. Step 2: Convert to fraction form
    918,896,321.48/1,268,076,916.86 = 501,208,593.80/x
  3. Step 3: Cross multiply
    918,896,321.48x = 1,268,076,916.86 × 501,208,593.80
  4. Step 4: Simplify right side
    918,896,321.48x = 635,571,048,329,640,064
  5. Step 5: Solve for x
    x = 635,571,048,329,640,064/918,896,321.48
  6. Step 6: Final answer
    x = 691,667,855.74

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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.