Home / 12,923,985.69-17,834,372.87-7,122,749.13

Finding the Fourth Proportional to 12,923,985.69, 17,834,372.87 and 7,122,749.13

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Solution

The fourth proportional to 12,923,985.69, 17,834,372.87 and 7,122,749.13 is: 9,828,992.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,923,985.69 : 17,834,372.87 = 7,122,749.13 : x
  2. Step 2: Convert to fraction form
    12,923,985.69/17,834,372.87 = 7,122,749.13/x
  3. Step 3: Cross multiply
    12,923,985.69x = 17,834,372.87 × 7,122,749.13
  4. Step 4: Simplify right side
    12,923,985.69x = 127,029,763,808,274.34
  5. Step 5: Solve for x
    x = 127,029,763,808,274.34/12,923,985.69
  6. Step 6: Final answer
    x = 9,828,992.92

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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.