Home / 1,586,285,661.60-2,188,162,474.80-990,535,970.32

Finding the Fourth Proportional to 1,586,285,661.60, 2,188,162,474.80 and 990,535,970.32

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Solution

The fourth proportional to 1,586,285,661.60, 2,188,162,474.80 and 990,535,970.32 is: 1,366,370,315.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,285,661.60 : 2,188,162,474.80 = 990,535,970.32 : x
  2. Step 2: Convert to fraction form
    1,586,285,661.60/2,188,162,474.80 = 990,535,970.32/x
  3. Step 3: Cross multiply
    1,586,285,661.60x = 2,188,162,474.80 × 990,535,970.32
  4. Step 4: Simplify right side
    1,586,285,661.60x = 2,167,453,640,193,830,912
  5. Step 5: Solve for x
    x = 2,167,453,640,193,830,912/1,586,285,661.60
  6. Step 6: Final answer
    x = 1,366,370,315.68

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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.