Home / 21,141,106.20-31,711,659.30-18,537,701.40

Finding the Fourth Proportional to 21,141,106.20, 31,711,659.30 and 18,537,701.40

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Solution

The fourth proportional to 21,141,106.20, 31,711,659.30 and 18,537,701.40 is: 27,806,552.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141,106.20 : 31,711,659.30 = 18,537,701.40 : x
  2. Step 2: Convert to fraction form
    21,141,106.20/31,711,659.30 = 18,537,701.40/x
  3. Step 3: Cross multiply
    21,141,106.20x = 31,711,659.30 × 18,537,701.40
  4. Step 4: Simplify right side
    21,141,106.20x = 587,861,271,001,933
  5. Step 5: Solve for x
    x = 587,861,271,001,933/21,141,106.20
  6. Step 6: Final answer
    x = 27,806,552.10

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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.