Home / 28,994,632,839.35-39,989,925,666.06-18,836,633,597.05

Finding the Fourth Proportional to 28,994,632,839.35, 39,989,925,666.06 and 18,836,633,597.05

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Solution

The fourth proportional to 28,994,632,839.35, 39,989,925,666.06 and 18,836,633,597.05 is: 25,979,828,112.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,994,632,839.35 : 39,989,925,666.06 = 18,836,633,597.05 : x
  2. Step 2: Convert to fraction form
    28,994,632,839.35/39,989,925,666.06 = 18,836,633,597.05/x
  3. Step 3: Cross multiply
    28,994,632,839.35x = 39,989,925,666.06 × 18,836,633,597.05
  4. Step 4: Simplify right side
    28,994,632,839.35x = 753,275,577,344,837,812,224
  5. Step 5: Solve for x
    x = 753,275,577,344,837,812,224/28,994,632,839.35
  6. Step 6: Final answer
    x = 25,979,828,112.28

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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.