Home / 1,820,636,668.10-2,512,469,364.91-985,261,238.70

Finding the Fourth Proportional to 1,820,636,668.10, 2,512,469,364.91 and 985,261,238.70

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Solution

The fourth proportional to 1,820,636,668.10, 2,512,469,364.91 and 985,261,238.70 is: 1,359,655,510.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,636,668.10 : 2,512,469,364.91 = 985,261,238.70 : x
  2. Step 2: Convert to fraction form
    1,820,636,668.10/2,512,469,364.91 = 985,261,238.70/x
  3. Step 3: Cross multiply
    1,820,636,668.10x = 2,512,469,364.91 × 985,261,238.70
  4. Step 4: Simplify right side
    1,820,636,668.10x = 2,475,438,678,655,418,368
  5. Step 5: Solve for x
    x = 2,475,438,678,655,418,368/1,820,636,668.10
  6. Step 6: Final answer
    x = 1,359,655,510.64

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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.