Home / 72,388,246.86-99,896,714.37-39,348,975.42

Finding the Fourth Proportional to 72,388,246.86, 99,896,714.37 and 39,348,975.42

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Solution

The fourth proportional to 72,388,246.86, 99,896,714.37 and 39,348,975.42 is: 54,302,093.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,388,246.86 : 99,896,714.37 = 39,348,975.42 : x
  2. Step 2: Convert to fraction form
    72,388,246.86/99,896,714.37 = 39,348,975.42/x
  3. Step 3: Cross multiply
    72,388,246.86x = 99,896,714.37 × 39,348,975.42
  4. Step 4: Simplify right side
    72,388,246.86x = 3,930,833,358,283,891
  5. Step 5: Solve for x
    x = 3,930,833,358,283,891/72,388,246.86
  6. Step 6: Final answer
    x = 54,302,093.62

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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.