Home / 56,882,955.60-78,497,919.87-30,776,900.61

Finding the Fourth Proportional to 56,882,955.60, 78,497,919.87 and 30,776,900.61

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Solution

The fourth proportional to 56,882,955.60, 78,497,919.87 and 30,776,900.61 is: 42,471,820.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,882,955.60 : 78,497,919.87 = 30,776,900.61 : x
  2. Step 2: Convert to fraction form
    56,882,955.60/78,497,919.87 = 30,776,900.61/x
  3. Step 3: Cross multiply
    56,882,955.60x = 78,497,919.87 × 30,776,900.61
  4. Step 4: Simplify right side
    56,882,955.60x = 2,415,922,677,930,734
  5. Step 5: Solve for x
    x = 2,415,922,677,930,734/56,882,955.60
  6. Step 6: Final answer
    x = 42,471,820.47

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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.