Home / 3,435,143.40-5,155,047.90-1,918,823.40

Finding the Fourth Proportional to 3,435,143.40, 5,155,047.90 and 1,918,823.40

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Solution

The fourth proportional to 3,435,143.40, 5,155,047.90 and 1,918,823.40 is: 2,879,538.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435,143.40 : 5,155,047.90 = 1,918,823.40 : x
  2. Step 2: Convert to fraction form
    3,435,143.40/5,155,047.90 = 1,918,823.40/x
  3. Step 3: Cross multiply
    3,435,143.40x = 5,155,047.90 × 1,918,823.40
  4. Step 4: Simplify right side
    3,435,143.40x = 9,891,626,538,640.86
  5. Step 5: Solve for x
    x = 9,891,626,538,640.86/3,435,143.40
  6. Step 6: Final answer
    x = 2,879,538.17

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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.