Home / 56,979,720.50-78,632,083.95-30,874,217.54

Finding the Fourth Proportional to 56,979,720.50, 78,632,083.95 and 30,874,217.54

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Solution

The fourth proportional to 56,979,720.50, 78,632,083.95 and 30,874,217.54 is: 42,606,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,979,720.50 : 78,632,083.95 = 30,874,217.54 : x
  2. Step 2: Convert to fraction form
    56,979,720.50/78,632,083.95 = 30,874,217.54/x
  3. Step 3: Cross multiply
    56,979,720.50x = 78,632,083.95 × 30,874,217.54
  4. Step 4: Simplify right side
    56,979,720.50x = 2,427,704,065,495,842.50
  5. Step 5: Solve for x
    x = 2,427,704,065,495,842.50/56,979,720.50
  6. Step 6: Final answer
    x = 42,606,457.95

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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.