Home / 28,429,870-42,634,827.40-7,954,089

Finding the Fourth Proportional to 28,429,870, 42,634,827.40 and 7,954,089

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Solution

The fourth proportional to 28,429,870, 42,634,827.40 and 7,954,089 is: 11,928,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429,870 : 42,634,827.40 = 7,954,089 : x
  2. Step 2: Convert to fraction form
    28,429,870/42,634,827.40 = 7,954,089/x
  3. Step 3: Cross multiply
    28,429,870x = 42,634,827.40 × 7,954,089
  4. Step 4: Simplify right side
    28,429,870x = 339,121,211,639,238.56
  5. Step 5: Solve for x
    x = 339,121,211,639,238.56/28,429,870
  6. Step 6: Final answer
    x = 11,928,341.97

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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.