Home / 122,212,419.30-168,657,573.42-70,011,543.78

Finding the Fourth Proportional to 122,212,419.30, 168,657,573.42 and 70,011,543.78

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Solution

The fourth proportional to 122,212,419.30, 168,657,573.42 and 70,011,543.78 is: 96,618,470.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,212,419.30 : 168,657,573.42 = 70,011,543.78 : x
  2. Step 2: Convert to fraction form
    122,212,419.30/168,657,573.42 = 70,011,543.78/x
  3. Step 3: Cross multiply
    122,212,419.30x = 168,657,573.42 × 70,011,543.78
  4. Step 4: Simplify right side
    122,212,419.30x = 11,807,977,085,322,894
  5. Step 5: Solve for x
    x = 11,807,977,085,322,894/122,212,419.30
  6. Step 6: Final answer
    x = 96,618,470.96

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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.