Home / 2,870,008,120.80-3,960,611,256.48-1,549,908,676.80

Finding the Fourth Proportional to 2,870,008,120.80, 3,960,611,256.48 and 1,549,908,676.80

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Solution

The fourth proportional to 2,870,008,120.80, 3,960,611,256.48 and 1,549,908,676.80 is: 2,138,874,000.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870,008,120.80 : 3,960,611,256.48 = 1,549,908,676.80 : x
  2. Step 2: Convert to fraction form
    2,870,008,120.80/3,960,611,256.48 = 1,549,908,676.80/x
  3. Step 3: Cross multiply
    2,870,008,120.80x = 3,960,611,256.48 × 1,549,908,676.80
  4. Step 4: Simplify right side
    2,870,008,120.80x = 6,138,585,751,850,101,760
  5. Step 5: Solve for x
    x = 6,138,585,751,850,101,760/2,870,008,120.80
  6. Step 6: Final answer
    x = 2,138,874,000.86

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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.