Home / 28,473,142.36-42,716,988.96-8,278,384.36

Finding the Fourth Proportional to 28,473,142.36, 42,716,988.96 and 8,278,384.36

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Solution

The fourth proportional to 28,473,142.36, 42,716,988.96 and 8,278,384.36 is: 12,419,691.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473,142.36 : 42,716,988.96 = 8,278,384.36 : x
  2. Step 2: Convert to fraction form
    28,473,142.36/42,716,988.96 = 8,278,384.36/x
  3. Step 3: Cross multiply
    28,473,142.36x = 42,716,988.96 × 8,278,384.36
  4. Step 4: Simplify right side
    28,473,142.36x = 353,627,653,312,756.69
  5. Step 5: Solve for x
    x = 353,627,653,312,756.69/28,473,142.36
  6. Step 6: Final answer
    x = 12,419,691.82

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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.