Home / 57,091,124.57-78,785,829.71-30,985,642.74

Finding the Fourth Proportional to 57,091,124.57, 78,785,829.71 and 30,985,642.74

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Solution

The fourth proportional to 57,091,124.57, 78,785,829.71 and 30,985,642.74 is: 42,760,229.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091,124.57 : 78,785,829.71 = 30,985,642.74 : x
  2. Step 2: Convert to fraction form
    57,091,124.57/78,785,829.71 = 30,985,642.74/x
  3. Step 3: Cross multiply
    57,091,124.57x = 78,785,829.71 × 30,985,642.74
  4. Step 4: Simplify right side
    57,091,124.57x = 2,441,229,572,368,537.50
  5. Step 5: Solve for x
    x = 2,441,229,572,368,537.50/57,091,124.57
  6. Step 6: Final answer
    x = 42,760,229.21

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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.