Home / 257,380,698.60-385,747,920.69-139,200,748.50

Finding the Fourth Proportional to 257,380,698.60, 385,747,920.69 and 139,200,748.50

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Solution

The fourth proportional to 257,380,698.60, 385,747,920.69 and 139,200,748.50 is: 208,626,363.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,380,698.60 : 385,747,920.69 = 139,200,748.50 : x
  2. Step 2: Convert to fraction form
    257,380,698.60/385,747,920.69 = 139,200,748.50/x
  3. Step 3: Cross multiply
    257,380,698.60x = 385,747,920.69 × 139,200,748.50
  4. Step 4: Simplify right side
    257,380,698.60x = 53,696,399,292,366,640
  5. Step 5: Solve for x
    x = 53,696,399,292,366,640/257,380,698.60
  6. Step 6: Final answer
    x = 208,626,363.92

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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.