Home / 56,818,515.45-78,409,574.55-30,713,033.20

Finding the Fourth Proportional to 56,818,515.45, 78,409,574.55 and 30,713,033.20

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Solution

The fourth proportional to 56,818,515.45, 78,409,574.55 and 30,713,033.20 is: 42,383,998.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,818,515.45 : 78,409,574.55 = 30,713,033.20 : x
  2. Step 2: Convert to fraction form
    56,818,515.45/78,409,574.55 = 30,713,033.20/x
  3. Step 3: Cross multiply
    56,818,515.45x = 78,409,574.55 × 30,713,033.20
  4. Step 4: Simplify right side
    56,818,515.45x = 2,408,195,866,352,025
  5. Step 5: Solve for x
    x = 2,408,195,866,352,025/56,818,515.45
  6. Step 6: Final answer
    x = 42,383,998.37

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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.