Home / 72,385,001.10-99,892,011.42-39,345,229.80

Finding the Fourth Proportional to 72,385,001.10, 99,892,011.42 and 39,345,229.80

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Solution

The fourth proportional to 72,385,001.10, 99,892,011.42 and 39,345,229.80 is: 54,296,802.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,385,001.10 : 99,892,011.42 = 39,345,229.80 : x
  2. Step 2: Convert to fraction form
    72,385,001.10/99,892,011.42 = 39,345,229.80/x
  3. Step 3: Cross multiply
    72,385,001.10x = 99,892,011.42 × 39,345,229.80
  4. Step 4: Simplify right side
    72,385,001.10x = 3,930,274,144,504,124
  5. Step 5: Solve for x
    x = 3,930,274,144,504,124/72,385,001.10
  6. Step 6: Final answer
    x = 54,296,802.99

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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.