Home / 439,981,415.10-659,216,295.45-209,454,119.10

Finding the Fourth Proportional to 439,981,415.10, 659,216,295.45 and 209,454,119.10

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Solution

The fourth proportional to 439,981,415.10, 659,216,295.45 and 209,454,119.10 is: 313,821,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,981,415.10 : 659,216,295.45 = 209,454,119.10 : x
  2. Step 2: Convert to fraction form
    439,981,415.10/659,216,295.45 = 209,454,119.10/x
  3. Step 3: Cross multiply
    439,981,415.10x = 659,216,295.45 × 209,454,119.10
  4. Step 4: Simplify right side
    439,981,415.10x = 138,075,568,459,845,088
  5. Step 5: Solve for x
    x = 138,075,568,459,845,088/439,981,415.10
  6. Step 6: Final answer
    x = 313,821,365.45

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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.