Home / 12,132,132,001.40-18,198,198,002.10-9,928,139,886.20

Finding the Fourth Proportional to 12,132,132,001.40, 18,198,198,002.10 and 9,928,139,886.20

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Solution

The fourth proportional to 12,132,132,001.40, 18,198,198,002.10 and 9,928,139,886.20 is: 14,892,209,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132,132,001.40 : 18,198,198,002.10 = 9,928,139,886.20 : x
  2. Step 2: Convert to fraction form
    12,132,132,001.40/18,198,198,002.10 = 9,928,139,886.20/x
  3. Step 3: Cross multiply
    12,132,132,001.40x = 18,198,198,002.10 × 9,928,139,886.20
  4. Step 4: Simplify right side
    12,132,132,001.40x = 180,674,255,441,614,176,256
  5. Step 5: Solve for x
    x = 180,674,255,441,614,176,256/12,132,132,001.40
  6. Step 6: Final answer
    x = 14,892,209,829.30

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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.