Home / 413,167,811.60-618,408,024.60-321,796,701.20

Finding the Fourth Proportional to 413,167,811.60, 618,408,024.60 and 321,796,701.20

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Solution

The fourth proportional to 413,167,811.60, 618,408,024.60 and 321,796,701.20 is: 481,648,513.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,167,811.60 : 618,408,024.60 = 321,796,701.20 : x
  2. Step 2: Convert to fraction form
    413,167,811.60/618,408,024.60 = 321,796,701.20/x
  3. Step 3: Cross multiply
    413,167,811.60x = 618,408,024.60 × 321,796,701.20
  4. Step 4: Simplify right side
    413,167,811.60x = 199,001,662,311,888,448
  5. Step 5: Solve for x
    x = 199,001,662,311,888,448/413,167,811.60
  6. Step 6: Final answer
    x = 481,648,513.57

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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.