Home / 919,397,487.90-1,268,795,329.53-501,736,676.82

Finding the Fourth Proportional to 919,397,487.90, 1,268,795,329.53 and 501,736,676.82

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Solution

The fourth proportional to 919,397,487.90, 1,268,795,329.53 and 501,736,676.82 is: 692,411,237.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,397,487.90 : 1,268,795,329.53 = 501,736,676.82 : x
  2. Step 2: Convert to fraction form
    919,397,487.90/1,268,795,329.53 = 501,736,676.82/x
  3. Step 3: Cross multiply
    919,397,487.90x = 1,268,795,329.53 × 501,736,676.82
  4. Step 4: Simplify right side
    919,397,487.90x = 636,601,152,203,118,976
  5. Step 5: Solve for x
    x = 636,601,152,203,118,976/919,397,487.90
  6. Step 6: Final answer
    x = 692,411,237.34

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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.