Home / 651,188,882.40-976,484,725.20-287,496,031.20

Finding the Fourth Proportional to 651,188,882.40, 976,484,725.20 and 287,496,031.20

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Solution

The fourth proportional to 651,188,882.40, 976,484,725.20 and 287,496,031.20 is: 431,112,217.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,188,882.40 : 976,484,725.20 = 287,496,031.20 : x
  2. Step 2: Convert to fraction form
    651,188,882.40/976,484,725.20 = 287,496,031.20/x
  3. Step 3: Cross multiply
    651,188,882.40x = 976,484,725.20 × 287,496,031.20
  4. Step 4: Simplify right side
    651,188,882.40x = 280,735,483,022,422,624
  5. Step 5: Solve for x
    x = 280,735,483,022,422,624/651,188,882.40
  6. Step 6: Final answer
    x = 431,112,217.38

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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.