Home / 2,100,308.40-3,152,017.80-1,390,100.40

Finding the Fourth Proportional to 2,100,308.40, 3,152,017.80 and 1,390,100.40

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Solution

The fourth proportional to 2,100,308.40, 3,152,017.80 and 1,390,100.40 is: 2,086,179.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,308.40 : 3,152,017.80 = 1,390,100.40 : x
  2. Step 2: Convert to fraction form
    2,100,308.40/3,152,017.80 = 1,390,100.40/x
  3. Step 3: Cross multiply
    2,100,308.40x = 3,152,017.80 × 1,390,100.40
  4. Step 4: Simplify right side
    2,100,308.40x = 4,381,621,204,587.12
  5. Step 5: Solve for x
    x = 4,381,621,204,587.12/2,100,308.40
  6. Step 6: Final answer
    x = 2,086,179.92

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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.