Home / 9,578,311,907.72-13,122,068,109.18-9,220,199,799.36

Finding the Fourth Proportional to 9,578,311,907.72, 13,122,068,109.18 and 9,220,199,799.36

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Solution

The fourth proportional to 9,578,311,907.72, 13,122,068,109.18 and 9,220,199,799.36 is: 12,631,462,716.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,578,311,907.72 : 13,122,068,109.18 = 9,220,199,799.36 : x
  2. Step 2: Convert to fraction form
    9,578,311,907.72/13,122,068,109.18 = 9,220,199,799.36/x
  3. Step 3: Cross multiply
    9,578,311,907.72x = 13,122,068,109.18 × 9,220,199,799.36
  4. Step 4: Simplify right side
    9,578,311,907.72x = 120,988,089,747,449,708,544
  5. Step 5: Solve for x
    x = 120,988,089,747,449,708,544/9,578,311,907.72
  6. Step 6: Final answer
    x = 12,631,462,716.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.