Home / 490,514,710.67-735,166,201.32-420,938,454.95

Finding the Fourth Proportional to 490,514,710.67, 735,166,201.32 and 420,938,454.95

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Solution

The fourth proportional to 490,514,710.67, 735,166,201.32 and 420,938,454.95 is: 630,887,755.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,514,710.67 : 735,166,201.32 = 420,938,454.95 : x
  2. Step 2: Convert to fraction form
    490,514,710.67/735,166,201.32 = 420,938,454.95/x
  3. Step 3: Cross multiply
    490,514,710.67x = 735,166,201.32 × 420,938,454.95
  4. Step 4: Simplify right side
    490,514,710.67x = 309,459,724,911,425,664
  5. Step 5: Solve for x
    x = 309,459,724,911,425,664/490,514,710.67
  6. Step 6: Final answer
    x = 630,887,755.62

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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.