Home / 30,820,996.86-42,532,869.52-17,768,193.54

Finding the Fourth Proportional to 30,820,996.86, 42,532,869.52 and 17,768,193.54

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Solution

The fourth proportional to 30,820,996.86, 42,532,869.52 and 17,768,193.54 is: 24,520,045.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,820,996.86 : 42,532,869.52 = 17,768,193.54 : x
  2. Step 2: Convert to fraction form
    30,820,996.86/42,532,869.52 = 17,768,193.54/x
  3. Step 3: Cross multiply
    30,820,996.86x = 42,532,869.52 × 17,768,193.54
  4. Step 4: Simplify right side
    30,820,996.86x = 755,732,257,141,421.62
  5. Step 5: Solve for x
    x = 755,732,257,141,421.62/30,820,996.86
  6. Step 6: Final answer
    x = 24,520,045.89

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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.