Home / 10,643,999.40-15,965,999.10-3,071,212.20

Finding the Fourth Proportional to 10,643,999.40, 15,965,999.10 and 3,071,212.20

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Solution

The fourth proportional to 10,643,999.40, 15,965,999.10 and 3,071,212.20 is: 4,606,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643,999.40 : 15,965,999.10 = 3,071,212.20 : x
  2. Step 2: Convert to fraction form
    10,643,999.40/15,965,999.10 = 3,071,212.20/x
  3. Step 3: Cross multiply
    10,643,999.40x = 15,965,999.10 × 3,071,212.20
  4. Step 4: Simplify right side
    10,643,999.40x = 49,034,971,221,109.02
  5. Step 5: Solve for x
    x = 49,034,971,221,109.02/10,643,999.40
  6. Step 6: Final answer
    x = 4,606,818.30

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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.