Home / 919,176,804.40-1,268,462,262.72-501,489,372.64

Finding the Fourth Proportional to 919,176,804.40, 1,268,462,262.72 and 501,489,372.64

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Solution

The fourth proportional to 919,176,804.40, 1,268,462,262.72 and 501,489,372.64 is: 692,054,391.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,176,804.40 : 1,268,462,262.72 = 501,489,372.64 : x
  2. Step 2: Convert to fraction form
    919,176,804.40/1,268,462,262.72 = 501,489,372.64/x
  3. Step 3: Cross multiply
    919,176,804.40x = 1,268,462,262.72 × 501,489,372.64
  4. Step 4: Simplify right side
    919,176,804.40x = 636,120,344,348,967,680
  5. Step 5: Solve for x
    x = 636,120,344,348,967,680/919,176,804.40
  6. Step 6: Final answer
    x = 692,054,391.83

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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.