Home / 12,131,927,994.60-18,197,891,991.90-4,771,178,836.20

Finding the Fourth Proportional to 12,131,927,994.60, 18,197,891,991.90 and 4,771,178,836.20

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Solution

The fourth proportional to 12,131,927,994.60, 18,197,891,991.90 and 4,771,178,836.20 is: 7,156,768,254.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,927,994.60 : 18,197,891,991.90 = 4,771,178,836.20 : x
  2. Step 2: Convert to fraction form
    12,131,927,994.60/18,197,891,991.90 = 4,771,178,836.20/x
  3. Step 3: Cross multiply
    12,131,927,994.60x = 18,197,891,991.90 × 4,771,178,836.20
  4. Step 4: Simplify right side
    12,131,927,994.60x = 86,825,397,135,206,744,064
  5. Step 5: Solve for x
    x = 86,825,397,135,206,744,064/12,131,927,994.60
  6. Step 6: Final answer
    x = 7,156,768,254.30

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Double scale
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1.5x scale

Why These Related Problems?

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