Home / 1,375,990,118.40-1,931,828,121.60-1,375,990,118.40

Finding the Fourth Proportional to 1,375,990,118.40, 1,931,828,121.60 and 1,375,990,118.40

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Solution

The fourth proportional to 1,375,990,118.40, 1,931,828,121.60 and 1,375,990,118.40 is: 1,931,828,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,990,118.40 : 1,931,828,121.60 = 1,375,990,118.40 : x
  2. Step 2: Convert to fraction form
    1,375,990,118.40/1,931,828,121.60 = 1,375,990,118.40/x
  3. Step 3: Cross multiply
    1,375,990,118.40x = 1,931,828,121.60 × 1,375,990,118.40
  4. Step 4: Simplify right side
    1,375,990,118.40x = 2,658,176,405,768,833,536
  5. Step 5: Solve for x
    x = 2,658,176,405,768,833,536/1,375,990,118.40
  6. Step 6: Final answer
    x = 1,931,828,121.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.