Home / 2,113,109.40-3,168,497.70-692,434.20

Finding the Fourth Proportional to 2,113,109.40, 3,168,497.70 and 692,434.20

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Solution

The fourth proportional to 2,113,109.40, 3,168,497.70 and 692,434.20 is: 1,038,269.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113,109.40 : 3,168,497.70 = 692,434.20 : x
  2. Step 2: Convert to fraction form
    2,113,109.40/3,168,497.70 = 692,434.20/x
  3. Step 3: Cross multiply
    2,113,109.40x = 3,168,497.70 × 692,434.20
  4. Step 4: Simplify right side
    2,113,109.40x = 2,193,976,170,101.34
  5. Step 5: Solve for x
    x = 2,193,976,170,101.34/2,113,109.40
  6. Step 6: Final answer
    x = 1,038,269.09

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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.