Home / 18,569,119,959.80-27,853,679,939.70-12,691,807,652.60

Finding the Fourth Proportional to 18,569,119,959.80, 27,853,679,939.70 and 12,691,807,652.60

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Solution

The fourth proportional to 18,569,119,959.80, 27,853,679,939.70 and 12,691,807,652.60 is: 19,037,711,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569,119,959.80 : 27,853,679,939.70 = 12,691,807,652.60 : x
  2. Step 2: Convert to fraction form
    18,569,119,959.80/27,853,679,939.70 = 12,691,807,652.60/x
  3. Step 3: Cross multiply
    18,569,119,959.80x = 27,853,679,939.70 × 12,691,807,652.60
  4. Step 4: Simplify right side
    18,569,119,959.80x = 353,513,548,211,755,614,208
  5. Step 5: Solve for x
    x = 353,513,548,211,755,614,208/18,569,119,959.80
  6. Step 6: Final answer
    x = 19,037,711,478.90

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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.