Home / 212,668,151.50-318,820,273.98-81,604,481.50

Finding the Fourth Proportional to 212,668,151.50, 318,820,273.98 and 81,604,481.50

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Solution

The fourth proportional to 212,668,151.50, 318,820,273.98 and 81,604,481.50 is: 122,336,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,668,151.50 : 318,820,273.98 = 81,604,481.50 : x
  2. Step 2: Convert to fraction form
    212,668,151.50/318,820,273.98 = 81,604,481.50/x
  3. Step 3: Cross multiply
    212,668,151.50x = 318,820,273.98 × 81,604,481.50
  4. Step 4: Simplify right side
    212,668,151.50x = 26,017,163,149,825,844
  5. Step 5: Solve for x
    x = 26,017,163,149,825,844/212,668,151.50
  6. Step 6: Final answer
    x = 122,336,903.60

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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.