Home / 490,678,810.30-735,393,025.05-260,758,042.30

Finding the Fourth Proportional to 490,678,810.30, 735,393,025.05 and 260,758,042.30

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Solution

The fourth proportional to 490,678,810.30, 735,393,025.05 and 260,758,042.30 is: 390,804,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,678,810.30 : 735,393,025.05 = 260,758,042.30 : x
  2. Step 2: Convert to fraction form
    490,678,810.30/735,393,025.05 = 260,758,042.30/x
  3. Step 3: Cross multiply
    490,678,810.30x = 735,393,025.05 × 260,758,042.30
  4. Step 4: Simplify right side
    490,678,810.30x = 191,759,645,533,112,864
  5. Step 5: Solve for x
    x = 191,759,645,533,112,864/490,678,810.30
  6. Step 6: Final answer
    x = 390,804,822.85

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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.