Home / 140,239,791.68-193,655,004.96-87,406,667.12

Finding the Fourth Proportional to 140,239,791.68, 193,655,004.96 and 87,406,667.12

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Solution

The fourth proportional to 140,239,791.68, 193,655,004.96 and 87,406,667.12 is: 120,698,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,239,791.68 : 193,655,004.96 = 87,406,667.12 : x
  2. Step 2: Convert to fraction form
    140,239,791.68/193,655,004.96 = 87,406,667.12/x
  3. Step 3: Cross multiply
    140,239,791.68x = 193,655,004.96 × 87,406,667.12
  4. Step 4: Simplify right side
    140,239,791.68x = 16,926,738,554,660,670
  5. Step 5: Solve for x
    x = 16,926,738,554,660,670/140,239,791.68
  6. Step 6: Final answer
    x = 120,698,543.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.