Home / 28,132,642.45-42,197,097.43-12,776,286.61

Finding the Fourth Proportional to 28,132,642.45, 42,197,097.43 and 12,776,286.61

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Solution

The fourth proportional to 28,132,642.45, 42,197,097.43 and 12,776,286.61 is: 19,163,582.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132,642.45 : 42,197,097.43 = 12,776,286.61 : x
  2. Step 2: Convert to fraction form
    28,132,642.45/42,197,097.43 = 12,776,286.61/x
  3. Step 3: Cross multiply
    28,132,642.45x = 42,197,097.43 × 12,776,286.61
  4. Step 4: Simplify right side
    28,132,642.45x = 539,122,210,875,774.38
  5. Step 5: Solve for x
    x = 539,122,210,875,774.38/28,132,642.45
  6. Step 6: Final answer
    x = 19,163,582.37

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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.