Home / 140,406,390.30-210,357,643.05-120,250,998.30

Finding the Fourth Proportional to 140,406,390.30, 210,357,643.05 and 120,250,998.30

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Solution

The fourth proportional to 140,406,390.30, 210,357,643.05 and 120,250,998.30 is: 180,160,721.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,406,390.30 : 210,357,643.05 = 120,250,998.30 : x
  2. Step 2: Convert to fraction form
    140,406,390.30/210,357,643.05 = 120,250,998.30/x
  3. Step 3: Cross multiply
    140,406,390.30x = 210,357,643.05 × 120,250,998.30
  4. Step 4: Simplify right side
    140,406,390.30x = 25,295,716,576,797,556
  5. Step 5: Solve for x
    x = 25,295,716,576,797,556/140,406,390.30
  6. Step 6: Final answer
    x = 180,160,721.48

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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.