Home / 56,756,961.78-78,324,601.77-30,651,476.64

Finding the Fourth Proportional to 56,756,961.78, 78,324,601.77 and 30,651,476.64

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Solution

The fourth proportional to 56,756,961.78, 78,324,601.77 and 30,651,476.64 is: 42,299,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,756,961.78 : 78,324,601.77 = 30,651,476.64 : x
  2. Step 2: Convert to fraction form
    56,756,961.78/78,324,601.77 = 30,651,476.64/x
  3. Step 3: Cross multiply
    56,756,961.78x = 78,324,601.77 × 30,651,476.64
  4. Step 4: Simplify right side
    56,756,961.78x = 2,400,764,701,490,457.50
  5. Step 5: Solve for x
    x = 2,400,764,701,490,457.50/56,756,961.78
  6. Step 6: Final answer
    x = 42,299,034.80

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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.