Home / 12,109,290,785.59-18,163,418,692.93-4,142,171,434.08

Finding the Fourth Proportional to 12,109,290,785.59, 18,163,418,692.93 and 4,142,171,434.08

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Solution

The fourth proportional to 12,109,290,785.59, 18,163,418,692.93 and 4,142,171,434.08 is: 6,213,080,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,290,785.59 : 18,163,418,692.93 = 4,142,171,434.08 : x
  2. Step 2: Convert to fraction form
    12,109,290,785.59/18,163,418,692.93 = 4,142,171,434.08/x
  3. Step 3: Cross multiply
    12,109,290,785.59x = 18,163,418,692.93 × 4,142,171,434.08
  4. Step 4: Simplify right side
    12,109,290,785.59x = 75,235,994,055,089,340,416
  5. Step 5: Solve for x
    x = 75,235,994,055,089,340,416/12,109,290,785.59
  6. Step 6: Final answer
    x = 6,213,080,137.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.