Home / 79,440,775.65-119,160,987.15-21,148,467.93

Finding the Fourth Proportional to 79,440,775.65, 119,160,987.15 and 21,148,467.93

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Solution

The fourth proportional to 79,440,775.65, 119,160,987.15 and 21,148,467.93 is: 31,722,654.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,440,775.65 : 119,160,987.15 = 21,148,467.93 : x
  2. Step 2: Convert to fraction form
    79,440,775.65/119,160,987.15 = 21,148,467.93/x
  3. Step 3: Cross multiply
    79,440,775.65x = 119,160,987.15 × 21,148,467.93
  4. Step 4: Simplify right side
    79,440,775.65x = 2,520,072,315,248,917
  5. Step 5: Solve for x
    x = 2,520,072,315,248,917/79,440,775.65
  6. Step 6: Final answer
    x = 31,722,654.95

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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.