Home / 154,686,107.60-213,462,568.64-85,071,513.76

Finding the Fourth Proportional to 154,686,107.60, 213,462,568.64 and 85,071,513.76

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Solution

The fourth proportional to 154,686,107.60, 213,462,568.64 and 85,071,513.76 is: 117,396,346.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,686,107.60 : 213,462,568.64 = 85,071,513.76 : x
  2. Step 2: Convert to fraction form
    154,686,107.60/213,462,568.64 = 85,071,513.76/x
  3. Step 3: Cross multiply
    154,686,107.60x = 213,462,568.64 × 85,071,513.76
  4. Step 4: Simplify right side
    154,686,107.60x = 18,159,583,845,302,704
  5. Step 5: Solve for x
    x = 18,159,583,845,302,704/154,686,107.60
  6. Step 6: Final answer
    x = 117,396,346.23

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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.