Home / 82,389,398.40-113,702,694.96-45,719,969.28

Finding the Fourth Proportional to 82,389,398.40, 113,702,694.96 and 45,719,969.28

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Solution

The fourth proportional to 82,389,398.40, 113,702,694.96 and 45,719,969.28 is: 63,096,512.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,389,398.40 : 113,702,694.96 = 45,719,969.28 : x
  2. Step 2: Convert to fraction form
    82,389,398.40/113,702,694.96 = 45,719,969.28/x
  3. Step 3: Cross multiply
    82,389,398.40x = 113,702,694.96 × 45,719,969.28
  4. Step 4: Simplify right side
    82,389,398.40x = 5,198,483,720,624,411
  5. Step 5: Solve for x
    x = 5,198,483,720,624,411/82,389,398.40
  6. Step 6: Final answer
    x = 63,096,512.68

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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.