Home / 521,420,639.04-782,277,380.64-152,964,288

Finding the Fourth Proportional to 521,420,639.04, 782,277,380.64 and 152,964,288

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Solution

The fourth proportional to 521,420,639.04, 782,277,380.64 and 152,964,288 is: 229,489,386.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,420,639.04 : 782,277,380.64 = 152,964,288 : x
  2. Step 2: Convert to fraction form
    521,420,639.04/782,277,380.64 = 152,964,288/x
  3. Step 3: Cross multiply
    521,420,639.04x = 782,277,380.64 × 152,964,288
  4. Step 4: Simplify right side
    521,420,639.04x = 119,660,502,548,102,576
  5. Step 5: Solve for x
    x = 119,660,502,548,102,576/521,420,639.04
  6. Step 6: Final answer
    x = 229,489,386.47

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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.