Home / 39,872,068.96-55,023,477.28-21,537,354.56

Finding the Fourth Proportional to 39,872,068.96, 55,023,477.28 and 21,537,354.56

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Solution

The fourth proportional to 39,872,068.96, 55,023,477.28 and 21,537,354.56 is: 29,721,561.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872,068.96 : 55,023,477.28 = 21,537,354.56 : x
  2. Step 2: Convert to fraction form
    39,872,068.96/55,023,477.28 = 21,537,354.56/x
  3. Step 3: Cross multiply
    39,872,068.96x = 55,023,477.28 × 21,537,354.56
  4. Step 4: Simplify right side
    39,872,068.96x = 1,185,060,139,303,464.25
  5. Step 5: Solve for x
    x = 1,185,060,139,303,464.25/39,872,068.96
  6. Step 6: Final answer
    x = 29,721,561.24

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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.