Home / 71,102,098.12-98,120,895.42-38,507,050.12

Finding the Fourth Proportional to 71,102,098.12, 98,120,895.42 and 38,507,050.12

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Solution

The fourth proportional to 71,102,098.12, 98,120,895.42 and 38,507,050.12 is: 53,139,729.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,102,098.12 : 98,120,895.42 = 38,507,050.12 : x
  2. Step 2: Convert to fraction form
    71,102,098.12/98,120,895.42 = 38,507,050.12/x
  3. Step 3: Cross multiply
    71,102,098.12x = 98,120,895.42 × 38,507,050.12
  4. Step 4: Simplify right side
    71,102,098.12x = 3,778,346,237,757,218.50
  5. Step 5: Solve for x
    x = 3,778,346,237,757,218.50/71,102,098.12
  6. Step 6: Final answer
    x = 53,139,729.17

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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.