Home / 858,033,114.90-1,287,049,672.35-664,322,870.40

Finding the Fourth Proportional to 858,033,114.90, 1,287,049,672.35 and 664,322,870.40

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Solution

The fourth proportional to 858,033,114.90, 1,287,049,672.35 and 664,322,870.40 is: 996,484,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,033,114.90 : 1,287,049,672.35 = 664,322,870.40 : x
  2. Step 2: Convert to fraction form
    858,033,114.90/1,287,049,672.35 = 664,322,870.40/x
  3. Step 3: Cross multiply
    858,033,114.90x = 1,287,049,672.35 × 664,322,870.40
  4. Step 4: Simplify right side
    858,033,114.90x = 855,016,532,682,931,456
  5. Step 5: Solve for x
    x = 855,016,532,682,931,456/858,033,114.90
  6. Step 6: Final answer
    x = 996,484,305.60

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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.