Home / 69,821,362.80-104,779,283.40-31,463,132.40

Finding the Fourth Proportional to 69,821,362.80, 104,779,283.40 and 31,463,132.40

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Solution

The fourth proportional to 69,821,362.80, 104,779,283.40 and 31,463,132.40 is: 47,215,985.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,821,362.80 : 104,779,283.40 = 31,463,132.40 : x
  2. Step 2: Convert to fraction form
    69,821,362.80/104,779,283.40 = 31,463,132.40/x
  3. Step 3: Cross multiply
    69,821,362.80x = 104,779,283.40 × 31,463,132.40
  4. Step 4: Simplify right side
    69,821,362.80x = 3,296,684,466,391,322
  5. Step 5: Solve for x
    x = 3,296,684,466,391,322/69,821,362.80
  6. Step 6: Final answer
    x = 47,215,985.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.