Home / 72,146,203.15-99,559,092.99-39,105,742.87

Finding the Fourth Proportional to 72,146,203.15, 99,559,092.99 and 39,105,742.87

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Solution

The fourth proportional to 72,146,203.15, 99,559,092.99 and 39,105,742.87 is: 53,964,479.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,146,203.15 : 99,559,092.99 = 39,105,742.87 : x
  2. Step 2: Convert to fraction form
    72,146,203.15/99,559,092.99 = 39,105,742.87/x
  3. Step 3: Cross multiply
    72,146,203.15x = 99,559,092.99 × 39,105,742.87
  4. Step 4: Simplify right side
    72,146,203.15x = 3,893,332,290,608,425
  5. Step 5: Solve for x
    x = 3,893,332,290,608,425/72,146,203.15
  6. Step 6: Final answer
    x = 53,964,479.36

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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.