Home / 122,477,419.91-169,018,543.56-66,723,298.47

Finding the Fourth Proportional to 122,477,419.91, 169,018,543.56 and 66,723,298.47

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Solution

The fourth proportional to 122,477,419.91, 169,018,543.56 and 66,723,298.47 is: 92,077,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,477,419.91 : 169,018,543.56 = 66,723,298.47 : x
  2. Step 2: Convert to fraction form
    122,477,419.91/169,018,543.56 = 66,723,298.47/x
  3. Step 3: Cross multiply
    122,477,419.91x = 169,018,543.56 × 66,723,298.47
  4. Step 4: Simplify right side
    122,477,419.91x = 11,277,474,728,918,576
  5. Step 5: Solve for x
    x = 11,277,474,728,918,576/122,477,419.91
  6. Step 6: Final answer
    x = 92,077,990.68

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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.