Home / 1,397,872,006.40-2,096,808,009.60-853,676,422.40

Finding the Fourth Proportional to 1,397,872,006.40, 2,096,808,009.60 and 853,676,422.40

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Solution

The fourth proportional to 1,397,872,006.40, 2,096,808,009.60 and 853,676,422.40 is: 1,280,514,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,872,006.40 : 2,096,808,009.60 = 853,676,422.40 : x
  2. Step 2: Convert to fraction form
    1,397,872,006.40/2,096,808,009.60 = 853,676,422.40/x
  3. Step 3: Cross multiply
    1,397,872,006.40x = 2,096,808,009.60 × 853,676,422.40
  4. Step 4: Simplify right side
    1,397,872,006.40x = 1,789,995,560,094,992,640
  5. Step 5: Solve for x
    x = 1,789,995,560,094,992,640/1,397,872,006.40
  6. Step 6: Final answer
    x = 1,280,514,633.60

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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.