Home / 28,112,711.22-42,172,479.16-7,917,953.22

Finding the Fourth Proportional to 28,112,711.22, 42,172,479.16 and 7,917,953.22

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Solution

The fourth proportional to 28,112,711.22, 42,172,479.16 and 7,917,953.22 is: 11,877,890.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,112,711.22 : 42,172,479.16 = 7,917,953.22 : x
  2. Step 2: Convert to fraction form
    28,112,711.22/42,172,479.16 = 7,917,953.22/x
  3. Step 3: Cross multiply
    28,112,711.22x = 42,172,479.16 × 7,917,953.22
  4. Step 4: Simplify right side
    28,112,711.22x = 333,919,717,140,510
  5. Step 5: Solve for x
    x = 333,919,717,140,510/28,112,711.22
  6. Step 6: Final answer
    x = 11,877,890.91

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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.