Home / 72,146,607.56-99,559,650.11-39,106,147.30

Finding the Fourth Proportional to 72,146,607.56, 99,559,650.11 and 39,106,147.30

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Solution

The fourth proportional to 72,146,607.56, 99,559,650.11 and 39,106,147.30 is: 53,965,036.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,146,607.56 : 99,559,650.11 = 39,106,147.30 : x
  2. Step 2: Convert to fraction form
    72,146,607.56/99,559,650.11 = 39,106,147.30/x
  3. Step 3: Cross multiply
    72,146,607.56x = 99,559,650.11 × 39,106,147.30
  4. Step 4: Simplify right side
    72,146,607.56x = 3,893,394,342,338,121
  5. Step 5: Solve for x
    x = 3,893,394,342,338,121/72,146,607.56
  6. Step 6: Final answer
    x = 53,965,036.94

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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.