Home / 189,567,604-261,603,649.44-105,935,735.20

Finding the Fourth Proportional to 189,567,604, 261,603,649.44 and 105,935,735.20

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Solution

The fourth proportional to 189,567,604, 261,603,649.44 and 105,935,735.20 is: 146,191,513.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,567,604 : 261,603,649.44 = 105,935,735.20 : x
  2. Step 2: Convert to fraction form
    189,567,604/261,603,649.44 = 105,935,735.20/x
  3. Step 3: Cross multiply
    189,567,604x = 261,603,649.44 × 105,935,735.20
  4. Step 4: Simplify right side
    189,567,604x = 27,713,174,934,429,468
  5. Step 5: Solve for x
    x = 27,713,174,934,429,468/189,567,604
  6. Step 6: Final answer
    x = 146,191,513.47

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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.