Home / 28,274,085,686.80-39,018,356,100.84-15,586,542,626.32

Finding the Fourth Proportional to 28,274,085,686.80, 39,018,356,100.84 and 15,586,542,626.32

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Solution

The fourth proportional to 28,274,085,686.80, 39,018,356,100.84 and 15,586,542,626.32 is: 21,509,493,792.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,274,085,686.80 : 39,018,356,100.84 = 15,586,542,626.32 : x
  2. Step 2: Convert to fraction form
    28,274,085,686.80/39,018,356,100.84 = 15,586,542,626.32/x
  3. Step 3: Cross multiply
    28,274,085,686.80x = 39,018,356,100.84 × 15,586,542,626.32
  4. Step 4: Simplify right side
    28,274,085,686.80x = 608,161,270,574,675,656,704
  5. Step 5: Solve for x
    x = 608,161,270,574,675,656,704/28,274,085,686.80
  6. Step 6: Final answer
    x = 21,509,493,792.71

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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.