Home / 12,132,132,000.40-18,198,198,000.60-9,928,139,885.20

Finding the Fourth Proportional to 12,132,132,000.40, 18,198,198,000.60 and 9,928,139,885.20

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Solution

The fourth proportional to 12,132,132,000.40, 18,198,198,000.60 and 9,928,139,885.20 is: 14,892,209,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132,132,000.40 : 18,198,198,000.60 = 9,928,139,885.20 : x
  2. Step 2: Convert to fraction form
    12,132,132,000.40/18,198,198,000.60 = 9,928,139,885.20/x
  3. Step 3: Cross multiply
    12,132,132,000.40x = 18,198,198,000.60 × 9,928,139,885.20
  4. Step 4: Simplify right side
    12,132,132,000.40x = 180,674,255,408,523,739,136
  5. Step 5: Solve for x
    x = 180,674,255,408,523,739,136/12,132,132,000.40
  6. Step 6: Final answer
    x = 14,892,209,827.80

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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.