Home / 1,443,554,366.71-1,992,106,500.39-783,504,780.79

Finding the Fourth Proportional to 1,443,554,366.71, 1,992,106,500.39 and 783,504,780.79

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Solution

The fourth proportional to 1,443,554,366.71, 1,992,106,500.39 and 783,504,780.79 is: 1,081,237,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,554,366.71 : 1,992,106,500.39 = 783,504,780.79 : x
  2. Step 2: Convert to fraction form
    1,443,554,366.71/1,992,106,500.39 = 783,504,780.79/x
  3. Step 3: Cross multiply
    1,443,554,366.71x = 1,992,106,500.39 × 783,504,780.79
  4. Step 4: Simplify right side
    1,443,554,366.71x = 1,560,824,966,898,401,024
  5. Step 5: Solve for x
    x = 1,560,824,966,898,401,024/1,443,554,366.71
  6. Step 6: Final answer
    x = 1,081,237,397.70

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Double scale
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1.5x scale

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.