Home / 2,931,397,187.80-4,397,733,510.90-965,915,793.40

Finding the Fourth Proportional to 2,931,397,187.80, 4,397,733,510.90 and 965,915,793.40

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Solution

The fourth proportional to 2,931,397,187.80, 4,397,733,510.90 and 965,915,793.40 is: 1,449,083,826.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931,397,187.80 : 4,397,733,510.90 = 965,915,793.40 : x
  2. Step 2: Convert to fraction form
    2,931,397,187.80/4,397,733,510.90 = 965,915,793.40/x
  3. Step 3: Cross multiply
    2,931,397,187.80x = 4,397,733,510.90 × 965,915,793.40
  4. Step 4: Simplify right side
    2,931,397,187.80x = 4,247,840,253,342,740,480
  5. Step 5: Solve for x
    x = 4,247,840,253,342,740,480/2,931,397,187.80
  6. Step 6: Final answer
    x = 1,449,083,826.31

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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.