Home / 39,052,420.16-53,892,338.65-21,648,721.28

Finding the Fourth Proportional to 39,052,420.16, 53,892,338.65 and 21,648,721.28

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Solution

The fourth proportional to 39,052,420.16, 53,892,338.65 and 21,648,721.28 is: 29,875,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,052,420.16 : 53,892,338.65 = 21,648,721.28 : x
  2. Step 2: Convert to fraction form
    39,052,420.16/53,892,338.65 = 21,648,721.28/x
  3. Step 3: Cross multiply
    39,052,420.16x = 53,892,338.65 × 21,648,721.28
  4. Step 4: Simplify right side
    39,052,420.16x = 1,166,700,218,237,638
  5. Step 5: Solve for x
    x = 1,166,700,218,237,638/39,052,420.16
  6. Step 6: Final answer
    x = 29,875,234.71

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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.