Home / 1,113,231,396.38-1,536,782,368.05-643,241,804.94

Finding the Fourth Proportional to 1,113,231,396.38, 1,536,782,368.05 and 643,241,804.94

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Solution

The fourth proportional to 1,113,231,396.38, 1,536,782,368.05 and 643,241,804.94 is: 887,975,911.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,231,396.38 : 1,536,782,368.05 = 643,241,804.94 : x
  2. Step 2: Convert to fraction form
    1,113,231,396.38/1,536,782,368.05 = 643,241,804.94/x
  3. Step 3: Cross multiply
    1,113,231,396.38x = 1,536,782,368.05 × 643,241,804.94
  4. Step 4: Simplify right side
    1,113,231,396.38x = 988,522,664,224,449,408
  5. Step 5: Solve for x
    x = 988,522,664,224,449,408/1,113,231,396.38
  6. Step 6: Final answer
    x = 887,975,911.79

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Double scale
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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.