Home / 1,270,694,676.64-1,900,190,750.72-1,208,707,398.40

Finding the Fourth Proportional to 1,270,694,676.64, 1,900,190,750.72 and 1,208,707,398.40

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Solution

The fourth proportional to 1,270,694,676.64, 1,900,190,750.72 and 1,208,707,398.40 is: 1,807,495,270.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,694,676.64 : 1,900,190,750.72 = 1,208,707,398.40 : x
  2. Step 2: Convert to fraction form
    1,270,694,676.64/1,900,190,750.72 = 1,208,707,398.40/x
  3. Step 3: Cross multiply
    1,270,694,676.64x = 1,900,190,750.72 × 1,208,707,398.40
  4. Step 4: Simplify right side
    1,270,694,676.64x = 2,296,774,618,766,514,432
  5. Step 5: Solve for x
    x = 2,296,774,618,766,514,432/1,270,694,676.64
  6. Step 6: Final answer
    x = 1,807,495,270.89

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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.