Home / 13,143,210.12-18,230,422.48-12,793,640.04

Finding the Fourth Proportional to 13,143,210.12, 18,230,422.48 and 12,793,640.04

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Solution

The fourth proportional to 13,143,210.12, 18,230,422.48 and 12,793,640.04 is: 17,745,547.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143,210.12 : 18,230,422.48 = 12,793,640.04 : x
  2. Step 2: Convert to fraction form
    13,143,210.12/18,230,422.48 = 12,793,640.04/x
  3. Step 3: Cross multiply
    13,143,210.12x = 18,230,422.48 × 12,793,640.04
  4. Step 4: Simplify right side
    13,143,210.12x = 233,233,462,986,244.09
  5. Step 5: Solve for x
    x = 233,233,462,986,244.09/13,143,210.12
  6. Step 6: Final answer
    x = 17,745,547.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.