Home / 1,121,641,462.32-1,680,958,292.88-872,947,022.52

Finding the Fourth Proportional to 1,121,641,462.32, 1,680,958,292.88 and 872,947,022.52

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Solution

The fourth proportional to 1,121,641,462.32, 1,680,958,292.88 and 872,947,022.52 is: 1,308,250,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,641,462.32 : 1,680,958,292.88 = 872,947,022.52 : x
  2. Step 2: Convert to fraction form
    1,121,641,462.32/1,680,958,292.88 = 872,947,022.52/x
  3. Step 3: Cross multiply
    1,121,641,462.32x = 1,680,958,292.88 × 872,947,022.52
  4. Step 4: Simplify right side
    1,121,641,462.32x = 1,467,387,536,749,898,240
  5. Step 5: Solve for x
    x = 1,467,387,536,749,898,240/1,121,641,462.32
  6. Step 6: Final answer
    x = 1,308,250,083.51

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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.