Home / 128,466,793.20-192,636,426.60-46,582,402.80

Finding the Fourth Proportional to 128,466,793.20, 192,636,426.60 and 46,582,402.80

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Solution

The fourth proportional to 128,466,793.20, 192,636,426.60 and 46,582,402.80 is: 69,850,483.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,466,793.20 : 192,636,426.60 = 46,582,402.80 : x
  2. Step 2: Convert to fraction form
    128,466,793.20/192,636,426.60 = 46,582,402.80/x
  3. Step 3: Cross multiply
    128,466,793.20x = 192,636,426.60 × 46,582,402.80
  4. Step 4: Simplify right side
    128,466,793.20x = 8,973,467,617,833,834
  5. Step 5: Solve for x
    x = 8,973,467,617,833,834/128,466,793.20
  6. Step 6: Final answer
    x = 69,850,483.49

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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.