Home / 13,188,088.40-19,786,798.20-12,721,528.40

Finding the Fourth Proportional to 13,188,088.40, 19,786,798.20 and 12,721,528.40

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Solution

The fourth proportional to 13,188,088.40, 19,786,798.20 and 12,721,528.40 is: 19,086,793.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,088.40 : 19,786,798.20 = 12,721,528.40 : x
  2. Step 2: Convert to fraction form
    13,188,088.40/19,786,798.20 = 12,721,528.40/x
  3. Step 3: Cross multiply
    13,188,088.40x = 19,786,798.20 × 12,721,528.40
  4. Step 4: Simplify right side
    13,188,088.40x = 251,718,315,246,368.88
  5. Step 5: Solve for x
    x = 251,718,315,246,368.88/13,188,088.40
  6. Step 6: Final answer
    x = 19,086,793.14

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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.