Home / 57,214,780.39-78,955,846.77-31,109,303.35

Finding the Fourth Proportional to 57,214,780.39, 78,955,846.77 and 31,109,303.35

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Solution

The fourth proportional to 57,214,780.39, 78,955,846.77 and 31,109,303.35 is: 42,930,539.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,214,780.39 : 78,955,846.77 = 31,109,303.35 : x
  2. Step 2: Convert to fraction form
    57,214,780.39/78,955,846.77 = 31,109,303.35/x
  3. Step 3: Cross multiply
    57,214,780.39x = 78,955,846.77 × 31,109,303.35
  4. Step 4: Simplify right side
    57,214,780.39x = 2,456,261,388,424,047.50
  5. Step 5: Solve for x
    x = 2,456,261,388,424,047.50/57,214,780.39
  6. Step 6: Final answer
    x = 42,930,539.48

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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.