Home / 120,838,178.80-180,832,115.40-110,634,511.60

Finding the Fourth Proportional to 120,838,178.80, 180,832,115.40 and 110,634,511.60

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Solution

The fourth proportional to 120,838,178.80, 180,832,115.40 and 110,634,511.60 is: 165,562,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,838,178.80 : 180,832,115.40 = 110,634,511.60 : x
  2. Step 2: Convert to fraction form
    120,838,178.80/180,832,115.40 = 110,634,511.60/x
  3. Step 3: Cross multiply
    120,838,178.80x = 180,832,115.40 × 110,634,511.60
  4. Step 4: Simplify right side
    120,838,178.80x = 20,006,272,768,873,840
  5. Step 5: Solve for x
    x = 20,006,272,768,873,840/120,838,178.80
  6. Step 6: Final answer
    x = 165,562,514.82

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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.