Home / 9,515,192.64-13,130,978.82-5,164,279.02

Finding the Fourth Proportional to 9,515,192.64, 13,130,978.82 and 5,164,279.02

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Solution

The fourth proportional to 9,515,192.64, 13,130,978.82 and 5,164,279.02 is: 7,126,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515,192.64 : 13,130,978.82 = 5,164,279.02 : x
  2. Step 2: Convert to fraction form
    9,515,192.64/13,130,978.82 = 5,164,279.02/x
  3. Step 3: Cross multiply
    9,515,192.64x = 13,130,978.82 × 5,164,279.02
  4. Step 4: Simplify right side
    9,515,192.64x = 67,812,038,432,190.35
  5. Step 5: Solve for x
    x = 67,812,038,432,190.35/9,515,192.64
  6. Step 6: Final answer
    x = 7,126,712.09

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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.