Home / 39,860,776.80-55,007,871.48-21,526,060.68

Finding the Fourth Proportional to 39,860,776.80, 55,007,871.48 and 21,526,060.68

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Solution

The fourth proportional to 39,860,776.80, 55,007,871.48 and 21,526,060.68 is: 29,705,963.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,860,776.80 : 55,007,871.48 = 21,526,060.68 : x
  2. Step 2: Convert to fraction form
    39,860,776.80/55,007,871.48 = 21,526,060.68/x
  3. Step 3: Cross multiply
    39,860,776.80x = 55,007,871.48 × 21,526,060.68
  4. Step 4: Simplify right side
    39,860,776.80x = 1,184,102,779,356,121.25
  5. Step 5: Solve for x
    x = 1,184,102,779,356,121.25/39,860,776.80
  6. Step 6: Final answer
    x = 29,705,963.47

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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.