Home / 3,865,987.64-5,335,128.99-2,123,730.50

Finding the Fourth Proportional to 3,865,987.64, 5,335,128.99 and 2,123,730.50

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Solution

The fourth proportional to 3,865,987.64, 5,335,128.99 and 2,123,730.50 is: 2,930,784.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865,987.64 : 5,335,128.99 = 2,123,730.50 : x
  2. Step 2: Convert to fraction form
    3,865,987.64/5,335,128.99 = 2,123,730.50/x
  3. Step 3: Cross multiply
    3,865,987.64x = 5,335,128.99 × 2,123,730.50
  4. Step 4: Simplify right side
    3,865,987.64x = 11,330,376,130,821.55
  5. Step 5: Solve for x
    x = 11,330,376,130,821.55/3,865,987.64
  6. Step 6: Final answer
    x = 2,930,784.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.