Home / 208,288,560.70-312,432,841.05-174,528,279.10

Finding the Fourth Proportional to 208,288,560.70, 312,432,841.05 and 174,528,279.10

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Solution

The fourth proportional to 208,288,560.70, 312,432,841.05 and 174,528,279.10 is: 261,792,418.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,288,560.70 : 312,432,841.05 = 174,528,279.10 : x
  2. Step 2: Convert to fraction form
    208,288,560.70/312,432,841.05 = 174,528,279.10/x
  3. Step 3: Cross multiply
    208,288,560.70x = 312,432,841.05 × 174,528,279.10
  4. Step 4: Simplify right side
    208,288,560.70x = 54,528,366,082,780,336
  5. Step 5: Solve for x
    x = 54,528,366,082,780,336/208,288,560.70
  6. Step 6: Final answer
    x = 261,792,418.65

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Double scale
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Similar ratio
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1.5x scale

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.