Home / 1,290,027,345.56-1,934,323,138-765,609,551

Finding the Fourth Proportional to 1,290,027,345.56, 1,934,323,138 and 765,609,551

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Solution

The fourth proportional to 1,290,027,345.56, 1,934,323,138 and 765,609,551 is: 1,147,988,276.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,027,345.56 : 1,934,323,138 = 765,609,551 : x
  2. Step 2: Convert to fraction form
    1,290,027,345.56/1,934,323,138 = 765,609,551/x
  3. Step 3: Cross multiply
    1,290,027,345.56x = 1,934,323,138 × 765,609,551
  4. Step 4: Simplify right side
    1,290,027,345.56x = 1,480,936,269,173,091,072
  5. Step 5: Solve for x
    x = 1,480,936,269,173,091,072/1,290,027,345.56
  6. Step 6: Final answer
    x = 1,147,988,276.58

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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.