Home / 680,222,414.80-1,020,333,622.20-291,979,176.40

Finding the Fourth Proportional to 680,222,414.80, 1,020,333,622.20 and 291,979,176.40

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Solution

The fourth proportional to 680,222,414.80, 1,020,333,622.20 and 291,979,176.40 is: 437,968,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,222,414.80 : 1,020,333,622.20 = 291,979,176.40 : x
  2. Step 2: Convert to fraction form
    680,222,414.80/1,020,333,622.20 = 291,979,176.40/x
  3. Step 3: Cross multiply
    680,222,414.80x = 1,020,333,622.20 × 291,979,176.40
  4. Step 4: Simplify right side
    680,222,414.80x = 297,916,170,663,184,768
  5. Step 5: Solve for x
    x = 297,916,170,663,184,768/680,222,414.80
  6. Step 6: Final answer
    x = 437,968,764.60

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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.