Home / 57,004,400.12-78,663,964.65-30,898,357.44

Finding the Fourth Proportional to 57,004,400.12, 78,663,964.65 and 30,898,357.44

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Solution

The fourth proportional to 57,004,400.12, 78,663,964.65 and 30,898,357.44 is: 42,638,590.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004,400.12 : 78,663,964.65 = 30,898,357.44 : x
  2. Step 2: Convert to fraction form
    57,004,400.12/78,663,964.65 = 30,898,357.44/x
  3. Step 3: Cross multiply
    57,004,400.12x = 78,663,964.65 × 30,898,357.44
  4. Step 4: Simplify right side
    57,004,400.12x = 2,430,587,297,403,225
  5. Step 5: Solve for x
    x = 2,430,587,297,403,225/57,004,400.12
  6. Step 6: Final answer
    x = 42,638,590.92

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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.