Home / 1,018,392,879.80-1,534,394,458.67-920,138,788.33

Finding the Fourth Proportional to 1,018,392,879.80, 1,534,394,458.67 and 920,138,788.33

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Solution

The fourth proportional to 1,018,392,879.80, 1,534,394,458.67 and 920,138,788.33 is: 1,386,356,764.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,392,879.80 : 1,534,394,458.67 = 920,138,788.33 : x
  2. Step 2: Convert to fraction form
    1,018,392,879.80/1,534,394,458.67 = 920,138,788.33/x
  3. Step 3: Cross multiply
    1,018,392,879.80x = 1,534,394,458.67 × 920,138,788.33
  4. Step 4: Simplify right side
    1,018,392,879.80x = 1,411,855,858,012,443,392
  5. Step 5: Solve for x
    x = 1,411,855,858,012,443,392/1,018,392,879.80
  6. Step 6: Final answer
    x = 1,386,356,764.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.