Home / 55,319,879.88-76,339,429.56-30,539,534.76

Finding the Fourth Proportional to 55,319,879.88, 76,339,429.56 and 30,539,534.76

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Solution

The fourth proportional to 55,319,879.88, 76,339,429.56 and 30,539,534.76 is: 42,143,451.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,319,879.88 : 76,339,429.56 = 30,539,534.76 : x
  2. Step 2: Convert to fraction form
    55,319,879.88/76,339,429.56 = 30,539,534.76/x
  3. Step 3: Cross multiply
    55,319,879.88x = 76,339,429.56 × 30,539,534.76
  4. Step 4: Simplify right side
    55,319,879.88x = 2,331,370,662,606,191.50
  5. Step 5: Solve for x
    x = 2,331,370,662,606,191.50/55,319,879.88
  6. Step 6: Final answer
    x = 42,143,451.28

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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.