Home / 77,978,090.13-116,985,073.63-26,169,567.79

Finding the Fourth Proportional to 77,978,090.13, 116,985,073.63 and 26,169,567.79

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Solution

The fourth proportional to 77,978,090.13, 116,985,073.63 and 26,169,567.79 is: 39,260,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,978,090.13 : 116,985,073.63 = 26,169,567.79 : x
  2. Step 2: Convert to fraction form
    77,978,090.13/116,985,073.63 = 26,169,567.79/x
  3. Step 3: Cross multiply
    77,978,090.13x = 116,985,073.63 × 26,169,567.79
  4. Step 4: Simplify right side
    77,978,090.13x = 3,061,448,814,957,369.50
  5. Step 5: Solve for x
    x = 3,061,448,814,957,369.50/77,978,090.13
  6. Step 6: Final answer
    x = 39,260,371.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.