Home / 768,403,896.34-1,060,397,731.73-415,979,887.06

Finding the Fourth Proportional to 768,403,896.34, 1,060,397,731.73 and 415,979,887.06

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Solution

The fourth proportional to 768,403,896.34, 1,060,397,731.73 and 415,979,887.06 is: 574,052,436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,403,896.34 : 1,060,397,731.73 = 415,979,887.06 : x
  2. Step 2: Convert to fraction form
    768,403,896.34/1,060,397,731.73 = 415,979,887.06/x
  3. Step 3: Cross multiply
    768,403,896.34x = 1,060,397,731.73 × 415,979,887.06
  4. Step 4: Simplify right side
    768,403,896.34x = 441,104,128,683,725,568
  5. Step 5: Solve for x
    x = 441,104,128,683,725,568/768,403,896.34
  6. Step 6: Final answer
    x = 574,052,436.21

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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.