Home / 703,317,292.39-1,055,128,285.01-211,989,459.07

Finding the Fourth Proportional to 703,317,292.39, 1,055,128,285.01 and 211,989,459.07

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Solution

The fourth proportional to 703,317,292.39, 1,055,128,285.01 and 211,989,459.07 is: 318,030,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,317,292.39 : 1,055,128,285.01 = 211,989,459.07 : x
  2. Step 2: Convert to fraction form
    703,317,292.39/1,055,128,285.01 = 211,989,459.07/x
  3. Step 3: Cross multiply
    703,317,292.39x = 1,055,128,285.01 × 211,989,459.07
  4. Step 4: Simplify right side
    703,317,292.39x = 223,676,074,388,726,688
  5. Step 5: Solve for x
    x = 223,676,074,388,726,688/703,317,292.39
  6. Step 6: Final answer
    x = 318,030,107.90

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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.