Home / 640,020,894.72-960,031,712.95-179,959,064.03

Finding the Fourth Proportional to 640,020,894.72, 960,031,712.95 and 179,959,064.03

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Solution

The fourth proportional to 640,020,894.72, 960,031,712.95 and 179,959,064.03 is: 269,938,700.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,020,894.72 : 960,031,712.95 = 179,959,064.03 : x
  2. Step 2: Convert to fraction form
    640,020,894.72/960,031,712.95 = 179,959,064.03/x
  3. Step 3: Cross multiply
    640,020,894.72x = 960,031,712.95 × 179,959,064.03
  4. Step 4: Simplify right side
    640,020,894.72x = 172,766,408,501,599,648
  5. Step 5: Solve for x
    x = 172,766,408,501,599,648/640,020,894.72
  6. Step 6: Final answer
    x = 269,938,700.33

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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.