Home / 1,928,692,439.10-2,893,326,135.03-685,018,418.13

Finding the Fourth Proportional to 1,928,692,439.10, 2,893,326,135.03 and 685,018,418.13

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Solution

The fourth proportional to 1,928,692,439.10, 2,893,326,135.03 and 685,018,418.13 is: 1,027,629,730.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,692,439.10 : 2,893,326,135.03 = 685,018,418.13 : x
  2. Step 2: Convert to fraction form
    1,928,692,439.10/2,893,326,135.03 = 685,018,418.13/x
  3. Step 3: Cross multiply
    1,928,692,439.10x = 2,893,326,135.03 × 685,018,418.13
  4. Step 4: Simplify right side
    1,928,692,439.10x = 1,981,981,692,152,437,504
  5. Step 5: Solve for x
    x = 1,981,981,692,152,437,504/1,928,692,439.10
  6. Step 6: Final answer
    x = 1,027,629,730.89

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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.