Home / 1,881,110,978.12-2,820,088,086.80-831,679,749.84

Finding the Fourth Proportional to 1,881,110,978.12, 2,820,088,086.80 and 831,679,749.84

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Solution

The fourth proportional to 1,881,110,978.12, 2,820,088,086.80 and 831,679,749.84 is: 1,246,821,788.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881,110,978.12 : 2,820,088,086.80 = 831,679,749.84 : x
  2. Step 2: Convert to fraction form
    1,881,110,978.12/2,820,088,086.80 = 831,679,749.84/x
  3. Step 3: Cross multiply
    1,881,110,978.12x = 2,820,088,086.80 × 831,679,749.84
  4. Step 4: Simplify right side
    1,881,110,978.12x = 2,345,410,154,556,588,544
  5. Step 5: Solve for x
    x = 2,345,410,154,556,588,544/1,881,110,978.12
  6. Step 6: Final answer
    x = 1,246,821,788.74

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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.