Home / 1,911,781,012.05-2,867,977,970.86-806,548,667.90

Finding the Fourth Proportional to 1,911,781,012.05, 2,867,977,970.86 and 806,548,667.90

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Solution

The fourth proportional to 1,911,781,012.05, 2,867,977,970.86 and 806,548,667.90 is: 1,209,952,289.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,781,012.05 : 2,867,977,970.86 = 806,548,667.90 : x
  2. Step 2: Convert to fraction form
    1,911,781,012.05/2,867,977,970.86 = 806,548,667.90/x
  3. Step 3: Cross multiply
    1,911,781,012.05x = 2,867,977,970.86 × 806,548,667.90
  4. Step 4: Simplify right side
    1,911,781,012.05x = 2,313,163,811,968,912,384
  5. Step 5: Solve for x
    x = 2,313,163,811,968,912,384/1,911,781,012.05
  6. Step 6: Final answer
    x = 1,209,952,289.19

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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.