Home / 28,386,465.66-42,579,086.58-7,915,639.47

Finding the Fourth Proportional to 28,386,465.66, 42,579,086.58 and 7,915,639.47

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Solution

The fourth proportional to 28,386,465.66, 42,579,086.58 and 7,915,639.47 is: 11,873,288.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386,465.66 : 42,579,086.58 = 7,915,639.47 : x
  2. Step 2: Convert to fraction form
    28,386,465.66/42,579,086.58 = 7,915,639.47/x
  3. Step 3: Cross multiply
    28,386,465.66x = 42,579,086.58 × 7,915,639.47
  4. Step 4: Simplify right side
    28,386,465.66x = 337,040,698,329,195.31
  5. Step 5: Solve for x
    x = 337,040,698,329,195.31/28,386,465.66
  6. Step 6: Final answer
    x = 11,873,288.57

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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.