Home / 208,460,139.52-312,738,246.48-72,145,522.84

Finding the Fourth Proportional to 208,460,139.52, 312,738,246.48 and 72,145,522.84

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Solution

The fourth proportional to 208,460,139.52, 312,738,246.48 and 72,145,522.84 is: 108,234,909.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,460,139.52 : 312,738,246.48 = 72,145,522.84 : x
  2. Step 2: Convert to fraction form
    208,460,139.52/312,738,246.48 = 72,145,522.84/x
  3. Step 3: Cross multiply
    208,460,139.52x = 312,738,246.48 × 72,145,522.84
  4. Step 4: Simplify right side
    208,460,139.52x = 22,562,664,304,364,392
  5. Step 5: Solve for x
    x = 22,562,664,304,364,392/208,460,139.52
  6. Step 6: Final answer
    x = 108,234,909.35

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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.