Home / 39,810,358,313.48-54,938,292,371.29-21,499,414,227.67

Finding the Fourth Proportional to 39,810,358,313.48, 54,938,292,371.29 and 21,499,414,227.67

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Solution

The fourth proportional to 39,810,358,313.48, 54,938,292,371.29 and 21,499,414,227.67 is: 29,669,190,499.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,810,358,313.48 : 54,938,292,371.29 = 21,499,414,227.67 : x
  2. Step 2: Convert to fraction form
    39,810,358,313.48/54,938,292,371.29 = 21,499,414,227.67/x
  3. Step 3: Cross multiply
    39,810,358,313.48x = 54,938,292,371.29 × 21,499,414,227.67
  4. Step 4: Simplify right side
    39,810,358,313.48x = 1,181,141,104,651,304,435,712
  5. Step 5: Solve for x
    x = 1,181,141,104,651,304,435,712/39,810,358,313.48
  6. Step 6: Final answer
    x = 29,669,190,499.38

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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.