Home / 120,617,985.88-181,003,503.65-51,531,309.93

Finding the Fourth Proportional to 120,617,985.88, 181,003,503.65 and 51,531,309.93

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Solution

The fourth proportional to 120,617,985.88, 181,003,503.65 and 51,531,309.93 is: 77,329,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,617,985.88 : 181,003,503.65 = 51,531,309.93 : x
  2. Step 2: Convert to fraction form
    120,617,985.88/181,003,503.65 = 51,531,309.93/x
  3. Step 3: Cross multiply
    120,617,985.88x = 181,003,503.65 × 51,531,309.93
  4. Step 4: Simplify right side
    120,617,985.88x = 9,327,347,645,004,036
  5. Step 5: Solve for x
    x = 9,327,347,645,004,036/120,617,985.88
  6. Step 6: Final answer
    x = 77,329,658.40

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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.