Home / 72,579,213.01-100,159,138.59-39,539,733.64

Finding the Fourth Proportional to 72,579,213.01, 100,159,138.59 and 39,539,733.64

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Solution

The fourth proportional to 72,579,213.01, 100,159,138.59 and 39,539,733.64 is: 54,564,736.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,579,213.01 : 100,159,138.59 = 39,539,733.64 : x
  2. Step 2: Convert to fraction form
    72,579,213.01/100,159,138.59 = 39,539,733.64/x
  3. Step 3: Cross multiply
    72,579,213.01x = 100,159,138.59 × 39,539,733.64
  4. Step 4: Simplify right side
    72,579,213.01x = 3,960,265,660,959,649.50
  5. Step 5: Solve for x
    x = 3,960,265,660,959,649.50/72,579,213.01
  6. Step 6: Final answer
    x = 54,564,736.89

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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.