Home / 1,188,925,032.80-1,777,647,986.40-878,988,641.60

Finding the Fourth Proportional to 1,188,925,032.80, 1,777,647,986.40 and 878,988,641.60

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Solution

The fourth proportional to 1,188,925,032.80, 1,777,647,986.40 and 878,988,641.60 is: 1,314,239,624.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,925,032.80 : 1,777,647,986.40 = 878,988,641.60 : x
  2. Step 2: Convert to fraction form
    1,188,925,032.80/1,777,647,986.40 = 878,988,641.60/x
  3. Step 3: Cross multiply
    1,188,925,032.80x = 1,777,647,986.40 × 878,988,641.60
  4. Step 4: Simplify right side
    1,188,925,032.80x = 1,562,532,388,808,711,424
  5. Step 5: Solve for x
    x = 1,562,532,388,808,711,424/1,188,925,032.80
  6. Step 6: Final answer
    x = 1,314,239,624.62

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1.5x scale

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.