Home / 12,116,012,446.20-18,174,018,669.30-7,980,126,007.80

Finding the Fourth Proportional to 12,116,012,446.20, 18,174,018,669.30 and 7,980,126,007.80

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Solution

The fourth proportional to 12,116,012,446.20, 18,174,018,669.30 and 7,980,126,007.80 is: 11,970,189,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116,012,446.20 : 18,174,018,669.30 = 7,980,126,007.80 : x
  2. Step 2: Convert to fraction form
    12,116,012,446.20/18,174,018,669.30 = 7,980,126,007.80/x
  3. Step 3: Cross multiply
    12,116,012,446.20x = 18,174,018,669.30 × 7,980,126,007.80
  4. Step 4: Simplify right side
    12,116,012,446.20x = 145,030,959,049,123,676,160
  5. Step 5: Solve for x
    x = 145,030,959,049,123,676,160/12,116,012,446.20
  6. Step 6: Final answer
    x = 11,970,189,011.70

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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.