Home / 7,144,761,104.46-9,859,778,430.57-3,972,876,917.22

Finding the Fourth Proportional to 7,144,761,104.46, 9,859,778,430.57 and 3,972,876,917.22

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Solution

The fourth proportional to 7,144,761,104.46, 9,859,778,430.57 and 3,972,876,917.22 is: 5,482,574,653.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144,761,104.46 : 9,859,778,430.57 = 3,972,876,917.22 : x
  2. Step 2: Convert to fraction form
    7,144,761,104.46/9,859,778,430.57 = 3,972,876,917.22/x
  3. Step 3: Cross multiply
    7,144,761,104.46x = 9,859,778,430.57 × 3,972,876,917.22
  4. Step 4: Simplify right side
    7,144,761,104.46x = 39,171,686,135,715,184,640
  5. Step 5: Solve for x
    x = 39,171,686,135,715,184,640/7,144,761,104.46
  6. Step 6: Final answer
    x = 5,482,574,653.37

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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.