Home / 855,439,623.64-1,180,507,554.30-464,299,128.28

Finding the Fourth Proportional to 855,439,623.64, 1,180,507,554.30 and 464,299,128.28

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Solution

The fourth proportional to 855,439,623.64, 1,180,507,554.30 and 464,299,128.28 is: 640,733,271.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,439,623.64 : 1,180,507,554.30 = 464,299,128.28 : x
  2. Step 2: Convert to fraction form
    855,439,623.64/1,180,507,554.30 = 464,299,128.28/x
  3. Step 3: Cross multiply
    855,439,623.64x = 1,180,507,554.30 × 464,299,128.28
  4. Step 4: Simplify right side
    855,439,623.64x = 548,108,628,389,444,736
  5. Step 5: Solve for x
    x = 548,108,628,389,444,736/855,439,623.64
  6. Step 6: Final answer
    x = 640,733,271.22

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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.