Home / 8,085,120.30-12,127,680.45-5,215,338.90

Finding the Fourth Proportional to 8,085,120.30, 12,127,680.45 and 5,215,338.90

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Solution

The fourth proportional to 8,085,120.30, 12,127,680.45 and 5,215,338.90 is: 7,823,008.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,120.30 : 12,127,680.45 = 5,215,338.90 : x
  2. Step 2: Convert to fraction form
    8,085,120.30/12,127,680.45 = 5,215,338.90/x
  3. Step 3: Cross multiply
    8,085,120.30x = 12,127,680.45 × 5,215,338.90
  4. Step 4: Simplify right side
    8,085,120.30x = 63,249,963,617,654.51
  5. Step 5: Solve for x
    x = 63,249,963,617,654.51/8,085,120.30
  6. Step 6: Final answer
    x = 7,823,008.35

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1.5x scale

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.