Home / 28,422,599,944.75-39,223,197,187.06-15,563,054,876.84

Finding the Fourth Proportional to 28,422,599,944.75, 39,223,197,187.06 and 15,563,054,876.84

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Solution

The fourth proportional to 28,422,599,944.75, 39,223,197,187.06 and 15,563,054,876.84 is: 21,477,020,802.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,422,599,944.75 : 39,223,197,187.06 = 15,563,054,876.84 : x
  2. Step 2: Convert to fraction form
    28,422,599,944.75/39,223,197,187.06 = 15,563,054,876.84/x
  3. Step 3: Cross multiply
    28,422,599,944.75x = 39,223,197,187.06 × 15,563,054,876.84
  4. Step 4: Simplify right side
    28,422,599,944.75x = 610,432,770,267,197,865,984
  5. Step 5: Solve for x
    x = 610,432,770,267,197,865,984/28,422,599,944.75
  6. Step 6: Final answer
    x = 21,477,020,802.24

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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.