Home / 13,637,288.18-18,819,856.67-7,442,732.21

Finding the Fourth Proportional to 13,637,288.18, 18,819,856.67 and 7,442,732.21

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Solution

The fourth proportional to 13,637,288.18, 18,819,856.67 and 7,442,732.21 is: 10,271,188.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637,288.18 : 18,819,856.67 = 7,442,732.21 : x
  2. Step 2: Convert to fraction form
    13,637,288.18/18,819,856.67 = 7,442,732.21/x
  3. Step 3: Cross multiply
    13,637,288.18x = 18,819,856.67 × 7,442,732.21
  4. Step 4: Simplify right side
    13,637,288.18x = 140,071,153,331,293.08
  5. Step 5: Solve for x
    x = 140,071,153,331,293.08/13,637,288.18
  6. Step 6: Final answer
    x = 10,271,188.19

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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.