Home / 320,629,557.72-442,466,941.86-173,948,692.44

Finding the Fourth Proportional to 320,629,557.72, 442,466,941.86 and 173,948,692.44

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Solution

The fourth proportional to 320,629,557.72, 442,466,941.86 and 173,948,692.44 is: 240,048,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,629,557.72 : 442,466,941.86 = 173,948,692.44 : x
  2. Step 2: Convert to fraction form
    320,629,557.72/442,466,941.86 = 173,948,692.44/x
  3. Step 3: Cross multiply
    320,629,557.72x = 442,466,941.86 × 173,948,692.44
  4. Step 4: Simplify right side
    320,629,557.72x = 76,966,545,984,472,496
  5. Step 5: Solve for x
    x = 76,966,545,984,472,496/320,629,557.72
  6. Step 6: Final answer
    x = 240,048,193.10

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1.5x scale

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.