Home / 485,215,458.48-727,082,577.12-288,090,693.36

Finding the Fourth Proportional to 485,215,458.48, 727,082,577.12 and 288,090,693.36

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Solution

The fourth proportional to 485,215,458.48, 727,082,577.12 and 288,090,693.36 is: 431,696,311.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,215,458.48 : 727,082,577.12 = 288,090,693.36 : x
  2. Step 2: Convert to fraction form
    485,215,458.48/727,082,577.12 = 288,090,693.36/x
  3. Step 3: Cross multiply
    485,215,458.48x = 727,082,577.12 × 288,090,693.36
  4. Step 4: Simplify right side
    485,215,458.48x = 209,465,723,772,476,480
  5. Step 5: Solve for x
    x = 209,465,723,772,476,480/485,215,458.48
  6. Step 6: Final answer
    x = 431,696,311.63

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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.