Home / 128,054,508-191,964,059.64-46,153,342.32

Finding the Fourth Proportional to 128,054,508, 191,964,059.64 and 46,153,342.32

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Solution

The fourth proportional to 128,054,508, 191,964,059.64 and 46,153,342.32 is: 69,187,591.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,054,508 : 191,964,059.64 = 46,153,342.32 : x
  2. Step 2: Convert to fraction form
    128,054,508/191,964,059.64 = 46,153,342.32/x
  3. Step 3: Cross multiply
    128,054,508x = 191,964,059.64 × 46,153,342.32
  4. Step 4: Simplify right side
    128,054,508x = 8,859,782,957,701,815
  5. Step 5: Solve for x
    x = 8,859,782,957,701,815/128,054,508
  6. Step 6: Final answer
    x = 69,187,591.25

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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.