Home / 1,212,875,645.76-1,673,768,389.86-655,958,692.14

Finding the Fourth Proportional to 1,212,875,645.76, 1,673,768,389.86 and 655,958,692.14

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Solution

The fourth proportional to 1,212,875,645.76, 1,673,768,389.86 and 655,958,692.14 is: 905,222,994.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,875,645.76 : 1,673,768,389.86 = 655,958,692.14 : x
  2. Step 2: Convert to fraction form
    1,212,875,645.76/1,673,768,389.86 = 655,958,692.14/x
  3. Step 3: Cross multiply
    1,212,875,645.76x = 1,673,768,389.86 × 655,958,692.14
  4. Step 4: Simplify right side
    1,212,875,645.76x = 1,097,922,923,957,839,104
  5. Step 5: Solve for x
    x = 1,097,922,923,957,839,104/1,212,875,645.76
  6. Step 6: Final answer
    x = 905,222,994.46

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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.