Home / 20,860,331.70-31,290,497.55-13,676,036.70

Finding the Fourth Proportional to 20,860,331.70, 31,290,497.55 and 13,676,036.70

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Solution

The fourth proportional to 20,860,331.70, 31,290,497.55 and 13,676,036.70 is: 20,514,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,331.70 : 31,290,497.55 = 13,676,036.70 : x
  2. Step 2: Convert to fraction form
    20,860,331.70/31,290,497.55 = 13,676,036.70/x
  3. Step 3: Cross multiply
    20,860,331.70x = 31,290,497.55 × 13,676,036.70
  4. Step 4: Simplify right side
    20,860,331.70x = 427,929,992,855,060.06
  5. Step 5: Solve for x
    x = 427,929,992,855,060.06/20,860,331.70
  6. Step 6: Final answer
    x = 20,514,055.05

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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.