Home / 122,723,124.60-169,361,505.48-66,972,137.40

Finding the Fourth Proportional to 122,723,124.60, 169,361,505.48 and 66,972,137.40

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Solution

The fourth proportional to 122,723,124.60, 169,361,505.48 and 66,972,137.40 is: 92,423,510.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,723,124.60 : 169,361,505.48 = 66,972,137.40 : x
  2. Step 2: Convert to fraction form
    122,723,124.60/169,361,505.48 = 66,972,137.40/x
  3. Step 3: Cross multiply
    122,723,124.60x = 169,361,505.48 × 66,972,137.40
  4. Step 4: Simplify right side
    122,723,124.60x = 11,342,502,015,277,412
  5. Step 5: Solve for x
    x = 11,342,502,015,277,412/122,723,124.60
  6. Step 6: Final answer
    x = 92,423,510.66

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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.