Home / 31,436,791,869.28-43,402,351,453.68-20,011,807,123.04

Finding the Fourth Proportional to 31,436,791,869.28, 43,402,351,453.68 and 20,011,807,123.04

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Solution

The fourth proportional to 31,436,791,869.28, 43,402,351,453.68 and 20,011,807,123.04 is: 27,628,757,081.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436,791,869.28 : 43,402,351,453.68 = 20,011,807,123.04 : x
  2. Step 2: Convert to fraction form
    31,436,791,869.28/43,402,351,453.68 = 20,011,807,123.04/x
  3. Step 3: Cross multiply
    31,436,791,869.28x = 43,402,351,453.68 × 20,011,807,123.04
  4. Step 4: Simplify right side
    31,436,791,869.28x = 868,559,485,977,438,978,048
  5. Step 5: Solve for x
    x = 868,559,485,977,438,978,048/31,436,791,869.28
  6. Step 6: Final answer
    x = 27,628,757,081.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.