Home / 918,896,320.98-1,268,076,916.17-501,208,593.30

Finding the Fourth Proportional to 918,896,320.98, 1,268,076,916.17 and 501,208,593.30

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Solution

The fourth proportional to 918,896,320.98, 1,268,076,916.17 and 501,208,593.30 is: 691,667,855.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,896,320.98 : 1,268,076,916.17 = 501,208,593.30 : x
  2. Step 2: Convert to fraction form
    918,896,320.98/1,268,076,916.17 = 501,208,593.30/x
  3. Step 3: Cross multiply
    918,896,320.98x = 1,268,076,916.17 × 501,208,593.30
  4. Step 4: Simplify right side
    918,896,320.98x = 635,571,047,349,767,808
  5. Step 5: Solve for x
    x = 635,571,047,349,767,808/918,896,320.98
  6. Step 6: Final answer
    x = 691,667,855.05

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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.