Home / 18,693,605.10-28,040,407.65-11,513,246.70

Finding the Fourth Proportional to 18,693,605.10, 28,040,407.65 and 11,513,246.70

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Solution

The fourth proportional to 18,693,605.10, 28,040,407.65 and 11,513,246.70 is: 17,269,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693,605.10 : 28,040,407.65 = 11,513,246.70 : x
  2. Step 2: Convert to fraction form
    18,693,605.10/28,040,407.65 = 11,513,246.70/x
  3. Step 3: Cross multiply
    18,693,605.10x = 28,040,407.65 × 11,513,246.70
  4. Step 4: Simplify right side
    18,693,605.10x = 322,836,130,843,017.19
  5. Step 5: Solve for x
    x = 322,836,130,843,017.19/18,693,605.10
  6. Step 6: Final answer
    x = 17,269,870.05

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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.