Home / 12,131,875,999.40-18,197,813,999.10-11,666,971,412.60

Finding the Fourth Proportional to 12,131,875,999.40, 18,197,813,999.10 and 11,666,971,412.60

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Solution

The fourth proportional to 12,131,875,999.40, 18,197,813,999.10 and 11,666,971,412.60 is: 17,500,457,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,875,999.40 : 18,197,813,999.10 = 11,666,971,412.60 : x
  2. Step 2: Convert to fraction form
    12,131,875,999.40/18,197,813,999.10 = 11,666,971,412.60/x
  3. Step 3: Cross multiply
    12,131,875,999.40x = 18,197,813,999.10 × 11,666,971,412.60
  4. Step 4: Simplify right side
    12,131,875,999.40x = 212,313,375,699,311,755,264
  5. Step 5: Solve for x
    x = 212,313,375,699,311,755,264/12,131,875,999.40
  6. Step 6: Final answer
    x = 17,500,457,118.90

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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.