Home / 122,477,421.72-169,018,546.04-66,723,300.28

Finding the Fourth Proportional to 122,477,421.72, 169,018,546.04 and 66,723,300.28

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Solution

The fourth proportional to 122,477,421.72, 169,018,546.04 and 66,723,300.28 is: 92,077,993.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,477,421.72 : 169,018,546.04 = 66,723,300.28 : x
  2. Step 2: Convert to fraction form
    122,477,421.72/169,018,546.04 = 66,723,300.28/x
  3. Step 3: Cross multiply
    122,477,421.72x = 169,018,546.04 × 66,723,300.28
  4. Step 4: Simplify right side
    122,477,421.72x = 11,277,475,200,060,186
  5. Step 5: Solve for x
    x = 11,277,475,200,060,186/122,477,421.72
  6. Step 6: Final answer
    x = 92,077,993.17

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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.