Home / 317,952,017.80-476,928,026.70-221,206,136.20

Finding the Fourth Proportional to 317,952,017.80, 476,928,026.70 and 221,206,136.20

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Solution

The fourth proportional to 317,952,017.80, 476,928,026.70 and 221,206,136.20 is: 331,809,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,952,017.80 : 476,928,026.70 = 221,206,136.20 : x
  2. Step 2: Convert to fraction form
    317,952,017.80/476,928,026.70 = 221,206,136.20/x
  3. Step 3: Cross multiply
    317,952,017.80x = 476,928,026.70 × 221,206,136.20
  4. Step 4: Simplify right side
    317,952,017.80x = 105,499,406,031,797,424
  5. Step 5: Solve for x
    x = 105,499,406,031,797,424/317,952,017.80
  6. Step 6: Final answer
    x = 331,809,204.30

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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.