Home / 386,323,474.60-579,485,211.90-127,578,629.80

Finding the Fourth Proportional to 386,323,474.60, 579,485,211.90 and 127,578,629.80

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Solution

The fourth proportional to 386,323,474.60, 579,485,211.90 and 127,578,629.80 is: 191,367,944.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,323,474.60 : 579,485,211.90 = 127,578,629.80 : x
  2. Step 2: Convert to fraction form
    386,323,474.60/579,485,211.90 = 127,578,629.80/x
  3. Step 3: Cross multiply
    386,323,474.60x = 579,485,211.90 × 127,578,629.80
  4. Step 4: Simplify right side
    386,323,474.60x = 73,929,929,323,564,656
  5. Step 5: Solve for x
    x = 73,929,929,323,564,656/386,323,474.60
  6. Step 6: Final answer
    x = 191,367,944.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.