Home / 218,290,745.92-301,242,191.52-120,506,405.44

Finding the Fourth Proportional to 218,290,745.92, 301,242,191.52 and 120,506,405.44

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Solution

The fourth proportional to 218,290,745.92, 301,242,191.52 and 120,506,405.44 is: 166,299,370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,290,745.92 : 301,242,191.52 = 120,506,405.44 : x
  2. Step 2: Convert to fraction form
    218,290,745.92/301,242,191.52 = 120,506,405.44/x
  3. Step 3: Cross multiply
    218,290,745.92x = 301,242,191.52 × 120,506,405.44
  4. Step 4: Simplify right side
    218,290,745.92x = 36,301,613,666,943,248
  5. Step 5: Solve for x
    x = 36,301,613,666,943,248/218,290,745.92
  6. Step 6: Final answer
    x = 166,299,370.66

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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.