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Finding the Fourth Proportional to 10,343,807,999.70, 15,515,711,999.55 and 10,343,807,999.70

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Solution

The fourth proportional to 10,343,807,999.70, 15,515,711,999.55 and 10,343,807,999.70 is: 15,515,711,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,343,807,999.70 : 15,515,711,999.55 = 10,343,807,999.70 : x
  2. Step 2: Convert to fraction form
    10,343,807,999.70/15,515,711,999.55 = 10,343,807,999.70/x
  3. Step 3: Cross multiply
    10,343,807,999.70x = 15,515,711,999.55 × 10,343,807,999.70
  4. Step 4: Simplify right side
    10,343,807,999.70x = 160,491,545,901,986,578,432
  5. Step 5: Solve for x
    x = 160,491,545,901,986,578,432/10,343,807,999.70
  6. Step 6: Final answer
    x = 15,515,711,999.55

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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.