Home / 780,064,322.52-1,076,502,635.26-422,843,798.76

Finding the Fourth Proportional to 780,064,322.52, 1,076,502,635.26 and 422,843,798.76

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Solution

The fourth proportional to 780,064,322.52, 1,076,502,635.26 and 422,843,798.76 is: 583,531,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,064,322.52 : 1,076,502,635.26 = 422,843,798.76 : x
  2. Step 2: Convert to fraction form
    780,064,322.52/1,076,502,635.26 = 422,843,798.76/x
  3. Step 3: Cross multiply
    780,064,322.52x = 1,076,502,635.26 × 422,843,798.76
  4. Step 4: Simplify right side
    780,064,322.52x = 455,192,463,668,489,088
  5. Step 5: Solve for x
    x = 455,192,463,668,489,088/780,064,322.52
  6. Step 6: Final answer
    x = 583,531,960.80

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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.