Home / 507,233,849.76-699,970,870.32-298,403,440.80

Finding the Fourth Proportional to 507,233,849.76, 699,970,870.32 and 298,403,440.80

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Solution

The fourth proportional to 507,233,849.76, 699,970,870.32 and 298,403,440.80 is: 411,789,781.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,233,849.76 : 699,970,870.32 = 298,403,440.80 : x
  2. Step 2: Convert to fraction form
    507,233,849.76/699,970,870.32 = 298,403,440.80/x
  3. Step 3: Cross multiply
    507,233,849.76x = 699,970,870.32 × 298,403,440.80
  4. Step 4: Simplify right side
    507,233,849.76x = 208,873,716,163,258,624
  5. Step 5: Solve for x
    x = 208,873,716,163,258,624/507,233,849.76
  6. Step 6: Final answer
    x = 411,789,781.50

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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.