Home / 1,120,163,655.90-1,680,231,968-291,043,933.14

Finding the Fourth Proportional to 1,120,163,655.90, 1,680,231,968 and 291,043,933.14

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Solution

The fourth proportional to 1,120,163,655.90, 1,680,231,968 and 291,043,933.14 is: 436,562,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,163,655.90 : 1,680,231,968 = 291,043,933.14 : x
  2. Step 2: Convert to fraction form
    1,120,163,655.90/1,680,231,968 = 291,043,933.14/x
  3. Step 3: Cross multiply
    1,120,163,655.90x = 1,680,231,968 × 291,043,933.14
  4. Step 4: Simplify right side
    1,120,163,655.90x = 489,021,320,554,282,624
  5. Step 5: Solve for x
    x = 489,021,320,554,282,624/1,120,163,655.90
  6. Step 6: Final answer
    x = 436,562,387.99

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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.