Home / 1,131,352,738.23-1,561,402,694.76-685,303,013.77

Finding the Fourth Proportional to 1,131,352,738.23, 1,561,402,694.76 and 685,303,013.77

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Solution

The fourth proportional to 1,131,352,738.23, 1,561,402,694.76 and 685,303,013.77 is: 945,800,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,352,738.23 : 1,561,402,694.76 = 685,303,013.77 : x
  2. Step 2: Convert to fraction form
    1,131,352,738.23/1,561,402,694.76 = 685,303,013.77/x
  3. Step 3: Cross multiply
    1,131,352,738.23x = 1,561,402,694.76 × 685,303,013.77
  4. Step 4: Simplify right side
    1,131,352,738.23x = 1,070,033,972,424,200,960
  5. Step 5: Solve for x
    x = 1,070,033,972,424,200,960/1,131,352,738.23
  6. Step 6: Final answer
    x = 945,800,488.45

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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.