Home / 780,084,198.24-1,076,492,862.72-427,648,143.84

Finding the Fourth Proportional to 780,084,198.24, 1,076,492,862.72 and 427,648,143.84

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Solution

The fourth proportional to 780,084,198.24, 1,076,492,862.72 and 427,648,143.84 is: 590,141,648.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,084,198.24 : 1,076,492,862.72 = 427,648,143.84 : x
  2. Step 2: Convert to fraction form
    780,084,198.24/1,076,492,862.72 = 427,648,143.84/x
  3. Step 3: Cross multiply
    780,084,198.24x = 1,076,492,862.72 × 427,648,143.84
  4. Step 4: Simplify right side
    780,084,198.24x = 460,360,174,599,215,936
  5. Step 5: Solve for x
    x = 460,360,174,599,215,936/780,084,198.24
  6. Step 6: Final answer
    x = 590,141,648.35

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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.