Home / 1,422,750,712.82-1,963,353,814.38-787,699,507.68

Finding the Fourth Proportional to 1,422,750,712.82, 1,963,353,814.38 and 787,699,507.68

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Solution

The fourth proportional to 1,422,750,712.82, 1,963,353,814.38 and 787,699,507.68 is: 1,087,001,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,750,712.82 : 1,963,353,814.38 = 787,699,507.68 : x
  2. Step 2: Convert to fraction form
    1,422,750,712.82/1,963,353,814.38 = 787,699,507.68/x
  3. Step 3: Cross multiply
    1,422,750,712.82x = 1,963,353,814.38 × 787,699,507.68
  4. Step 4: Simplify right side
    1,422,750,712.82x = 1,546,532,832,988,776,192
  5. Step 5: Solve for x
    x = 1,546,532,832,988,776,192/1,422,750,712.82
  6. Step 6: Final answer
    x = 1,087,001,973.75

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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.