Home / 640,020,893.72-960,031,711.45-179,959,063.03

Finding the Fourth Proportional to 640,020,893.72, 960,031,711.45 and 179,959,063.03

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Solution

The fourth proportional to 640,020,893.72, 960,031,711.45 and 179,959,063.03 is: 269,938,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,020,893.72 : 960,031,711.45 = 179,959,063.03 : x
  2. Step 2: Convert to fraction form
    640,020,893.72/960,031,711.45 = 179,959,063.03/x
  3. Step 3: Cross multiply
    640,020,893.72x = 960,031,711.45 × 179,959,063.03
  4. Step 4: Simplify right side
    640,020,893.72x = 172,766,407,269,454,176
  5. Step 5: Solve for x
    x = 172,766,407,269,454,176/640,020,893.72
  6. Step 6: Final answer
    x = 269,938,698.82

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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.