Home / 420,744,308.96-631,116,468.91-114,036,421.84

Finding the Fourth Proportional to 420,744,308.96, 631,116,468.91 and 114,036,421.84

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Solution

The fourth proportional to 420,744,308.96, 631,116,468.91 and 114,036,421.84 is: 171,054,634.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,744,308.96 : 631,116,468.91 = 114,036,421.84 : x
  2. Step 2: Convert to fraction form
    420,744,308.96/631,116,468.91 = 114,036,421.84/x
  3. Step 3: Cross multiply
    420,744,308.96x = 631,116,468.91 × 114,036,421.84
  4. Step 4: Simplify right side
    420,744,308.96x = 71,970,263,878,792,000
  5. Step 5: Solve for x
    x = 71,970,263,878,792,000/420,744,308.96
  6. Step 6: Final answer
    x = 171,054,634.24

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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.