Home / 1,392,958,703.28-2,087,142,214.68-809,053,847.76

Finding the Fourth Proportional to 1,392,958,703.28, 2,087,142,214.68 and 809,053,847.76

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Solution

The fourth proportional to 1,392,958,703.28, 2,087,142,214.68 and 809,053,847.76 is: 1,212,247,309.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,958,703.28 : 2,087,142,214.68 = 809,053,847.76 : x
  2. Step 2: Convert to fraction form
    1,392,958,703.28/2,087,142,214.68 = 809,053,847.76/x
  3. Step 3: Cross multiply
    1,392,958,703.28x = 2,087,142,214.68 × 809,053,847.76
  4. Step 4: Simplify right side
    1,392,958,703.28x = 1,688,610,439,609,181,952
  5. Step 5: Solve for x
    x = 1,688,610,439,609,181,952/1,392,958,703.28
  6. Step 6: Final answer
    x = 1,212,247,309.01

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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.