Home / 505,472,017.20-758,208,025.80-413,639,012.40

Finding the Fourth Proportional to 505,472,017.20, 758,208,025.80 and 413,639,012.40

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Solution

The fourth proportional to 505,472,017.20, 758,208,025.80 and 413,639,012.40 is: 620,458,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,472,017.20 : 758,208,025.80 = 413,639,012.40 : x
  2. Step 2: Convert to fraction form
    505,472,017.20/758,208,025.80 = 413,639,012.40/x
  3. Step 3: Cross multiply
    505,472,017.20x = 758,208,025.80 × 413,639,012.40
  4. Step 4: Simplify right side
    505,472,017.20x = 313,624,418,985,665,664
  5. Step 5: Solve for x
    x = 313,624,418,985,665,664/505,472,017.20
  6. Step 6: Final answer
    x = 620,458,518.60

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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.