Home / 28,905,917.77-39,892,689.35-15,855,698.94

Finding the Fourth Proportional to 28,905,917.77, 39,892,689.35 and 15,855,698.94

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Solution

The fourth proportional to 28,905,917.77, 39,892,689.35 and 15,855,698.94 is: 21,882,248.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905,917.77 : 39,892,689.35 = 15,855,698.94 : x
  2. Step 2: Convert to fraction form
    28,905,917.77/39,892,689.35 = 15,855,698.94/x
  3. Step 3: Cross multiply
    28,905,917.77x = 39,892,689.35 × 15,855,698.94
  4. Step 4: Simplify right side
    28,905,917.77x = 632,526,472,240,544.25
  5. Step 5: Solve for x
    x = 632,526,472,240,544.25/28,905,917.77
  6. Step 6: Final answer
    x = 21,882,248.38

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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.