Home / 72,146,193.74-99,559,080.05-39,105,733.48

Finding the Fourth Proportional to 72,146,193.74, 99,559,080.05 and 39,105,733.48

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Solution

The fourth proportional to 72,146,193.74, 99,559,080.05 and 39,105,733.48 is: 53,964,466.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,146,193.74 : 99,559,080.05 = 39,105,733.48 : x
  2. Step 2: Convert to fraction form
    72,146,193.74/99,559,080.05 = 39,105,733.48/x
  3. Step 3: Cross multiply
    72,146,193.74x = 99,559,080.05 × 39,105,733.48
  4. Step 4: Simplify right side
    72,146,193.74x = 3,893,330,850,284,848.50
  5. Step 5: Solve for x
    x = 3,893,330,850,284,848.50/72,146,193.74
  6. Step 6: Final answer
    x = 53,964,466.43

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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.