Home / 1,116,801,268.63-1,541,136,036.70-640,149,925.30

Finding the Fourth Proportional to 1,116,801,268.63, 1,541,136,036.70 and 640,149,925.30

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Solution

The fourth proportional to 1,116,801,268.63, 1,541,136,036.70 and 640,149,925.30 is: 883,378,400.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,801,268.63 : 1,541,136,036.70 = 640,149,925.30 : x
  2. Step 2: Convert to fraction form
    1,116,801,268.63/1,541,136,036.70 = 640,149,925.30/x
  3. Step 3: Cross multiply
    1,116,801,268.63x = 1,541,136,036.70 × 640,149,925.30
  4. Step 4: Simplify right side
    1,116,801,268.63x = 986,558,118,765,766,016
  5. Step 5: Solve for x
    x = 986,558,118,765,766,016/1,116,801,268.63
  6. Step 6: Final answer
    x = 883,378,400.86

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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.