Home / 7,144,761,105.46-9,859,778,431.95-3,972,876,918.22

Finding the Fourth Proportional to 7,144,761,105.46, 9,859,778,431.95 and 3,972,876,918.22

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Solution

The fourth proportional to 7,144,761,105.46, 9,859,778,431.95 and 3,972,876,918.22 is: 5,482,574,654.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144,761,105.46 : 9,859,778,431.95 = 3,972,876,918.22 : x
  2. Step 2: Convert to fraction form
    7,144,761,105.46/9,859,778,431.95 = 3,972,876,918.22/x
  3. Step 3: Cross multiply
    7,144,761,105.46x = 9,859,778,431.95 × 3,972,876,918.22
  4. Step 4: Simplify right side
    7,144,761,105.46x = 39,171,686,151,057,539,072
  5. Step 5: Solve for x
    x = 39,171,686,151,057,539,072/7,144,761,105.46
  6. Step 6: Final answer
    x = 5,482,574,654.75

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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.