Home / 12,131,730,246.80-18,197,595,370.20-9,927,738,131.60

Finding the Fourth Proportional to 12,131,730,246.80, 18,197,595,370.20 and 9,927,738,131.60

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Solution

The fourth proportional to 12,131,730,246.80, 18,197,595,370.20 and 9,927,738,131.60 is: 14,891,607,197.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,730,246.80 : 18,197,595,370.20 = 9,927,738,131.60 : x
  2. Step 2: Convert to fraction form
    12,131,730,246.80/18,197,595,370.20 = 9,927,738,131.60/x
  3. Step 3: Cross multiply
    12,131,730,246.80x = 18,197,595,370.20 × 9,927,738,131.60
  4. Step 4: Simplify right side
    12,131,730,246.80x = 180,660,961,460,162,166,784
  5. Step 5: Solve for x
    x = 180,660,961,460,162,166,784/12,131,730,246.80
  6. Step 6: Final answer
    x = 14,891,607,197.40

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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.