Home / 776,479,107.60-1,165,380,010.20-316,747,213.20

Finding the Fourth Proportional to 776,479,107.60, 1,165,380,010.20 and 316,747,213.20

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Solution

The fourth proportional to 776,479,107.60, 1,165,380,010.20 and 316,747,213.20 is: 475,390,602.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,479,107.60 : 1,165,380,010.20 = 316,747,213.20 : x
  2. Step 2: Convert to fraction form
    776,479,107.60/1,165,380,010.20 = 316,747,213.20/x
  3. Step 3: Cross multiply
    776,479,107.60x = 1,165,380,010.20 × 316,747,213.20
  4. Step 4: Simplify right side
    776,479,107.60x = 369,130,870,549,837,568
  5. Step 5: Solve for x
    x = 369,130,870,549,837,568/776,479,107.60
  6. Step 6: Final answer
    x = 475,390,602.19

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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.