Home / 112,345,309.40-168,517,964.10-69,074,202.20

Finding the Fourth Proportional to 112,345,309.40, 168,517,964.10 and 69,074,202.20

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Solution

The fourth proportional to 112,345,309.40, 168,517,964.10 and 69,074,202.20 is: 103,611,303.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,345,309.40 : 168,517,964.10 = 69,074,202.20 : x
  2. Step 2: Convert to fraction form
    112,345,309.40/168,517,964.10 = 69,074,202.20/x
  3. Step 3: Cross multiply
    112,345,309.40x = 168,517,964.10 × 69,074,202.20
  4. Step 4: Simplify right side
    112,345,309.40x = 11,640,243,926,575,742
  5. Step 5: Solve for x
    x = 11,640,243,926,575,742/112,345,309.40
  6. Step 6: Final answer
    x = 103,611,303.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.