Home / 442,872,029.80-664,308,044.70-417,789,764.20

Finding the Fourth Proportional to 442,872,029.80, 664,308,044.70 and 417,789,764.20

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Solution

The fourth proportional to 442,872,029.80, 664,308,044.70 and 417,789,764.20 is: 626,684,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,872,029.80 : 664,308,044.70 = 417,789,764.20 : x
  2. Step 2: Convert to fraction form
    442,872,029.80/664,308,044.70 = 417,789,764.20/x
  3. Step 3: Cross multiply
    442,872,029.80x = 664,308,044.70 × 417,789,764.20
  4. Step 4: Simplify right side
    442,872,029.80x = 277,541,101,351,376,064
  5. Step 5: Solve for x
    x = 277,541,101,351,376,064/442,872,029.80
  6. Step 6: Final answer
    x = 626,684,646.30

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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.