Home / 490,678,078.30-735,391,927.05-260,757,310.30

Finding the Fourth Proportional to 490,678,078.30, 735,391,927.05 and 260,757,310.30

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Solution

The fourth proportional to 490,678,078.30, 735,391,927.05 and 260,757,310.30 is: 390,803,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,678,078.30 : 735,391,927.05 = 260,757,310.30 : x
  2. Step 2: Convert to fraction form
    490,678,078.30/735,391,927.05 = 260,757,310.30/x
  3. Step 3: Cross multiply
    490,678,078.30x = 735,391,927.05 × 260,757,310.30
  4. Step 4: Simplify right side
    490,678,078.30x = 191,758,820,913,891,808
  5. Step 5: Solve for x
    x = 191,758,820,913,891,808/490,678,078.30
  6. Step 6: Final answer
    x = 390,803,725.28

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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.