Home / 318,930,705.60-478,371,175.20-124,804,420.80

Finding the Fourth Proportional to 318,930,705.60, 478,371,175.20 and 124,804,420.80

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Solution

The fourth proportional to 318,930,705.60, 478,371,175.20 and 124,804,420.80 is: 187,196,893.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,930,705.60 : 478,371,175.20 = 124,804,420.80 : x
  2. Step 2: Convert to fraction form
    318,930,705.60/478,371,175.20 = 124,804,420.80/x
  3. Step 3: Cross multiply
    318,930,705.60x = 478,371,175.20 × 124,804,420.80
  4. Step 4: Simplify right side
    318,930,705.60x = 59,702,837,448,251,320
  5. Step 5: Solve for x
    x = 59,702,837,448,251,320/318,930,705.60
  6. Step 6: Final answer
    x = 187,196,893.87

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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.