Home / 472,446,070.80-708,669,106.20-442,212,982.80

Finding the Fourth Proportional to 472,446,070.80, 708,669,106.20 and 442,212,982.80

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Solution

The fourth proportional to 472,446,070.80, 708,669,106.20 and 442,212,982.80 is: 663,319,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,446,070.80 : 708,669,106.20 = 442,212,982.80 : x
  2. Step 2: Convert to fraction form
    472,446,070.80/708,669,106.20 = 442,212,982.80/x
  3. Step 3: Cross multiply
    472,446,070.80x = 708,669,106.20 × 442,212,982.80
  4. Step 4: Simplify right side
    472,446,070.80x = 313,382,679,270,912,000
  5. Step 5: Solve for x
    x = 313,382,679,270,912,000/472,446,070.80
  6. Step 6: Final answer
    x = 663,319,474.20

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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.