Home / 20,392,368.13-28,142,210.58-11,099,489.36

Finding the Fourth Proportional to 20,392,368.13, 28,142,210.58 and 11,099,489.36

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Solution

The fourth proportional to 20,392,368.13, 28,142,210.58 and 11,099,489.36 is: 15,317,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,368.13 : 28,142,210.58 = 11,099,489.36 : x
  2. Step 2: Convert to fraction form
    20,392,368.13/28,142,210.58 = 11,099,489.36/x
  3. Step 3: Cross multiply
    20,392,368.13x = 28,142,210.58 × 11,099,489.36
  4. Step 4: Simplify right side
    20,392,368.13x = 312,364,166,899,589.38
  5. Step 5: Solve for x
    x = 312,364,166,899,589.38/20,392,368.13
  6. Step 6: Final answer
    x = 15,317,699.49

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1.5x scale

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.