Home / 39,872,007-55,023,391.53-21,537,292.50

Finding the Fourth Proportional to 39,872,007, 55,023,391.53 and 21,537,292.50

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Solution

The fourth proportional to 39,872,007, 55,023,391.53 and 21,537,292.50 is: 29,721,475.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872,007 : 55,023,391.53 = 21,537,292.50 : x
  2. Step 2: Convert to fraction form
    39,872,007/55,023,391.53 = 21,537,292.50/x
  3. Step 3: Cross multiply
    39,872,007x = 55,023,391.53 × 21,537,292.50
  4. Step 4: Simplify right side
    39,872,007x = 1,185,054,877,723,632.50
  5. Step 5: Solve for x
    x = 1,185,054,877,723,632.50/39,872,007
  6. Step 6: Final answer
    x = 29,721,475.46

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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.