Home / 72,548,384-100,112,232.36-39,953,336

Finding the Fourth Proportional to 72,548,384, 100,112,232.36 and 39,953,336

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Solution

The fourth proportional to 72,548,384, 100,112,232.36 and 39,953,336 is: 55,133,104.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,548,384 : 100,112,232.36 = 39,953,336 : x
  2. Step 2: Convert to fraction form
    72,548,384/100,112,232.36 = 39,953,336/x
  3. Step 3: Cross multiply
    72,548,384x = 100,112,232.36 × 39,953,336
  4. Step 4: Simplify right side
    72,548,384x = 3,999,817,657,189,153
  5. Step 5: Solve for x
    x = 3,999,817,657,189,153/72,548,384
  6. Step 6: Final answer
    x = 55,133,104.79

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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.