Home / 1,383,412,690.95-1,909,155,040.83-756,866,781.06

Finding the Fourth Proportional to 1,383,412,690.95, 1,909,155,040.83 and 756,866,781.06

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Solution

The fourth proportional to 1,383,412,690.95, 1,909,155,040.83 and 756,866,781.06 is: 1,044,501,065.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,412,690.95 : 1,909,155,040.83 = 756,866,781.06 : x
  2. Step 2: Convert to fraction form
    1,383,412,690.95/1,909,155,040.83 = 756,866,781.06/x
  3. Step 3: Cross multiply
    1,383,412,690.95x = 1,909,155,040.83 × 756,866,781.06
  4. Step 4: Simplify right side
    1,383,412,690.95x = 1,444,976,030,297,474,816
  5. Step 5: Solve for x
    x = 1,444,976,030,297,474,816/1,383,412,690.95
  6. Step 6: Final answer
    x = 1,044,501,065.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.