Home / 761,203,911.86-1,050,408,535.13-422,129,878.41

Finding the Fourth Proportional to 761,203,911.86, 1,050,408,535.13 and 422,129,878.41

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Solution

The fourth proportional to 761,203,911.86, 1,050,408,535.13 and 422,129,878.41 is: 582,509,916.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,203,911.86 : 1,050,408,535.13 = 422,129,878.41 : x
  2. Step 2: Convert to fraction form
    761,203,911.86/1,050,408,535.13 = 422,129,878.41/x
  3. Step 3: Cross multiply
    761,203,911.86x = 1,050,408,535.13 × 422,129,878.41
  4. Step 4: Simplify right side
    761,203,911.86x = 443,408,827,213,142,464
  5. Step 5: Solve for x
    x = 443,408,827,213,142,464/761,203,911.86
  6. Step 6: Final answer
    x = 582,509,916.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.