Home / 72,024,137.91-99,393,315.17-39,429,089.91

Finding the Fourth Proportional to 72,024,137.91, 99,393,315.17 and 39,429,089.91

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Solution

The fourth proportional to 72,024,137.91, 99,393,315.17 and 39,429,089.91 is: 54,412,146.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,024,137.91 : 99,393,315.17 = 39,429,089.91 : x
  2. Step 2: Convert to fraction form
    72,024,137.91/99,393,315.17 = 39,429,089.91/x
  3. Step 3: Cross multiply
    72,024,137.91x = 99,393,315.17 × 39,429,089.91
  4. Step 4: Simplify right side
    72,024,137.91x = 3,918,987,960,290,896.50
  5. Step 5: Solve for x
    x = 3,918,987,960,290,896.50/72,024,137.91
  6. Step 6: Final answer
    x = 54,412,146.73

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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.