Home / 5,315,145.81-7,973,985.86-1,720,913.85

Finding the Fourth Proportional to 5,315,145.81, 7,973,985.86 and 1,720,913.85

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Solution

The fourth proportional to 5,315,145.81, 7,973,985.86 and 1,720,913.85 is: 2,581,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,145.81 : 7,973,985.86 = 1,720,913.85 : x
  2. Step 2: Convert to fraction form
    5,315,145.81/7,973,985.86 = 1,720,913.85/x
  3. Step 3: Cross multiply
    5,315,145.81x = 7,973,985.86 × 1,720,913.85
  4. Step 4: Simplify right side
    5,315,145.81x = 13,722,542,706,178.16
  5. Step 5: Solve for x
    x = 13,722,542,706,178.16/5,315,145.81
  6. Step 6: Final answer
    x = 2,581,781.05

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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.