Home / 9,746,128,817.28-13,449,821,329.44-5,290,793,192.16

Finding the Fourth Proportional to 9,746,128,817.28, 13,449,821,329.44 and 5,290,793,192.16

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Solution

The fourth proportional to 9,746,128,817.28, 13,449,821,329.44 and 5,290,793,192.16 is: 7,301,383,396.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,746,128,817.28 : 13,449,821,329.44 = 5,290,793,192.16 : x
  2. Step 2: Convert to fraction form
    9,746,128,817.28/13,449,821,329.44 = 5,290,793,192.16/x
  3. Step 3: Cross multiply
    9,746,128,817.28x = 13,449,821,329.44 × 5,290,793,192.16
  4. Step 4: Simplify right side
    9,746,128,817.28x = 71,160,223,125,569,511,424
  5. Step 5: Solve for x
    x = 71,160,223,125,569,511,424/9,746,128,817.28
  6. Step 6: Final answer
    x = 7,301,383,396.39

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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.