Home / 565,355,107.35-780,185,354.90-317,837,562.39

Finding the Fourth Proportional to 565,355,107.35, 780,185,354.90 and 317,837,562.39

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Solution

The fourth proportional to 565,355,107.35, 780,185,354.90 and 317,837,562.39 is: 438,613,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,355,107.35 : 780,185,354.90 = 317,837,562.39 : x
  2. Step 2: Convert to fraction form
    565,355,107.35/780,185,354.90 = 317,837,562.39/x
  3. Step 3: Cross multiply
    565,355,107.35x = 780,185,354.90 × 317,837,562.39
  4. Step 4: Simplify right side
    565,355,107.35x = 247,972,211,412,203,840
  5. Step 5: Solve for x
    x = 247,972,211,412,203,840/565,355,107.35
  6. Step 6: Final answer
    x = 438,613,197.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.