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Finding the Fourth Proportional to 1,393,650,833.70, 2,090,476,250.55 and 773,778,051.30

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Solution

The fourth proportional to 1,393,650,833.70, 2,090,476,250.55 and 773,778,051.30 is: 1,160,667,076.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,650,833.70 : 2,090,476,250.55 = 773,778,051.30 : x
  2. Step 2: Convert to fraction form
    1,393,650,833.70/2,090,476,250.55 = 773,778,051.30/x
  3. Step 3: Cross multiply
    1,393,650,833.70x = 2,090,476,250.55 × 773,778,051.30
  4. Step 4: Simplify right side
    1,393,650,833.70x = 1,617,564,639,439,509,504
  5. Step 5: Solve for x
    x = 1,617,564,639,439,509,504/1,393,650,833.70
  6. Step 6: Final answer
    x = 1,160,667,076.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.